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Finding the Fourth Proportional to 499,068.42, 688,716.21 and 272,713.92

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Solution

The fourth proportional to 499,068.42, 688,716.21 and 272,713.92 is: 376,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,068.42 : 688,716.21 = 272,713.92 : x
  2. Step 2: Convert to fraction form
    499,068.42/688,716.21 = 272,713.92/x
  3. Step 3: Cross multiply
    499,068.42x = 688,716.21 × 272,713.92
  4. Step 4: Simplify right side
    499,068.42x = 187,822,497,396.64
  5. Step 5: Solve for x
    x = 187,822,497,396.64/499,068.42
  6. Step 6: Final answer
    x = 376,346.19

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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.