Home / 747,330.71-1,031,372.80-425,070.79

Finding the Fourth Proportional to 747,330.71, 1,031,372.80 and 425,070.79

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Solution

The fourth proportional to 747,330.71, 1,031,372.80 and 425,070.79 is: 586,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,330.71 : 1,031,372.80 = 425,070.79 : x
  2. Step 2: Convert to fraction form
    747,330.71/1,031,372.80 = 425,070.79/x
  3. Step 3: Cross multiply
    747,330.71x = 1,031,372.80 × 425,070.79
  4. Step 4: Simplify right side
    747,330.71x = 438,406,447,239.40
  5. Step 5: Solve for x
    x = 438,406,447,239.40/747,330.71
  6. Step 6: Final answer
    x = 586,629.78

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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.