Home / 738,505.76-1,019,478.12-432,539.60

Finding the Fourth Proportional to 738,505.76, 1,019,478.12 and 432,539.60

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Solution

The fourth proportional to 738,505.76, 1,019,478.12 and 432,539.60 is: 597,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,505.76 : 1,019,478.12 = 432,539.60 : x
  2. Step 2: Convert to fraction form
    738,505.76/1,019,478.12 = 432,539.60/x
  3. Step 3: Cross multiply
    738,505.76x = 1,019,478.12 × 432,539.60
  4. Step 4: Simplify right side
    738,505.76x = 440,964,658,233.55
  5. Step 5: Solve for x
    x = 440,964,658,233.55/738,505.76
  6. Step 6: Final answer
    x = 597,103.88

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Double scale
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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.