Home / 751,516.76-1,037,071.68-429,220.20

Finding the Fourth Proportional to 751,516.76, 1,037,071.68 and 429,220.20

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Solution

The fourth proportional to 751,516.76, 1,037,071.68 and 429,220.20 is: 592,311.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,516.76 : 1,037,071.68 = 429,220.20 : x
  2. Step 2: Convert to fraction form
    751,516.76/1,037,071.68 = 429,220.20/x
  3. Step 3: Cross multiply
    751,516.76x = 1,037,071.68 × 429,220.20
  4. Step 4: Simplify right side
    751,516.76x = 445,132,113,903.94
  5. Step 5: Solve for x
    x = 445,132,113,903.94/751,516.76
  6. Step 6: Final answer
    x = 592,311.63

Related Problems

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Half scale
Find fourth proportional to 1,503,033.52, 2,074,143.36 and 858,440.40
Double scale
Find fourth proportional to 751,517.76, 1,037,073.06 and 429,221.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.