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Finding the Fourth Proportional to 657,337.20, 985,429.80 and 446,290.80

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Solution

The fourth proportional to 657,337.20, 985,429.80 and 446,290.80 is: 669,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,337.20 : 985,429.80 = 446,290.80 : x
  2. Step 2: Convert to fraction form
    657,337.20/985,429.80 = 446,290.80/x
  3. Step 3: Cross multiply
    657,337.20x = 985,429.80 × 446,290.80
  4. Step 4: Simplify right side
    657,337.20x = 439,788,253,785.84
  5. Step 5: Solve for x
    x = 439,788,253,785.84/657,337.20
  6. Step 6: Final answer
    x = 669,045.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.