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Finding the Fourth Proportional to 502,877.10, 754,315.65 and 447,764.70

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Solution

The fourth proportional to 502,877.10, 754,315.65 and 447,764.70 is: 671,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,877.10 : 754,315.65 = 447,764.70 : x
  2. Step 2: Convert to fraction form
    502,877.10/754,315.65 = 447,764.70/x
  3. Step 3: Cross multiply
    502,877.10x = 754,315.65 × 447,764.70
  4. Step 4: Simplify right side
    502,877.10x = 337,755,920,727.56
  5. Step 5: Solve for x
    x = 337,755,920,727.56/502,877.10
  6. Step 6: Final answer
    x = 671,647.05

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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.