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Finding the Fourth Proportional to 498,877.32, 688,418.94 and 272,523

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Solution

The fourth proportional to 498,877.32, 688,418.94 and 272,523 is: 376,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,877.32 : 688,418.94 = 272,523 : x
  2. Step 2: Convert to fraction form
    498,877.32/688,418.94 = 272,523/x
  3. Step 3: Cross multiply
    498,877.32x = 688,418.94 × 272,523
  4. Step 4: Simplify right side
    498,877.32x = 187,609,994,785.62
  5. Step 5: Solve for x
    x = 187,609,994,785.62/498,877.32
  6. Step 6: Final answer
    x = 376,064.39

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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.