Home / 747,384.78-1,031,393.07-445,572.30

Finding the Fourth Proportional to 747,384.78, 1,031,393.07 and 445,572.30

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Solution

The fourth proportional to 747,384.78, 1,031,393.07 and 445,572.30 is: 614,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,384.78 : 1,031,393.07 = 445,572.30 : x
  2. Step 2: Convert to fraction form
    747,384.78/1,031,393.07 = 445,572.30/x
  3. Step 3: Cross multiply
    747,384.78x = 1,031,393.07 × 445,572.30
  4. Step 4: Simplify right side
    747,384.78x = 459,560,182,403.96
  5. Step 5: Solve for x
    x = 459,560,182,403.96/747,384.78
  6. Step 6: Final answer
    x = 614,891.01

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Double scale
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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.