Home / 754,559.55-1,040,764.55-512,421.39

Finding the Fourth Proportional to 754,559.55, 1,040,764.55 and 512,421.39

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Solution

The fourth proportional to 754,559.55, 1,040,764.55 and 512,421.39 is: 706,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,559.55 : 1,040,764.55 = 512,421.39 : x
  2. Step 2: Convert to fraction form
    754,559.55/1,040,764.55 = 512,421.39/x
  3. Step 3: Cross multiply
    754,559.55x = 1,040,764.55 × 512,421.39
  4. Step 4: Simplify right side
    754,559.55x = 533,310,014,811.62
  5. Step 5: Solve for x
    x = 533,310,014,811.62/754,559.55
  6. Step 6: Final answer
    x = 706,783.20

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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.