Home / 747,160.64-1,031,073.11-420,472.39

Finding the Fourth Proportional to 747,160.64, 1,031,073.11 and 420,472.39

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Solution

The fourth proportional to 747,160.64, 1,031,073.11 and 420,472.39 is: 580,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,160.64 : 1,031,073.11 = 420,472.39 : x
  2. Step 2: Convert to fraction form
    747,160.64/1,031,073.11 = 420,472.39/x
  3. Step 3: Cross multiply
    747,160.64x = 1,031,073.11 × 420,472.39
  4. Step 4: Simplify right side
    747,160.64x = 433,537,777,147.58
  5. Step 5: Solve for x
    x = 433,537,777,147.58/747,160.64
  6. Step 6: Final answer
    x = 580,247.07

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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.