Home / 499,118.06-688,781.40-272,763.56

Finding the Fourth Proportional to 499,118.06, 688,781.40 and 272,763.56

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Solution

The fourth proportional to 499,118.06, 688,781.40 and 272,763.56 is: 376,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,118.06 : 688,781.40 = 272,763.56 : x
  2. Step 2: Convert to fraction form
    499,118.06/688,781.40 = 272,763.56/x
  3. Step 3: Cross multiply
    499,118.06x = 688,781.40 × 272,763.56
  4. Step 4: Simplify right side
    499,118.06x = 187,874,466,725.78
  5. Step 5: Solve for x
    x = 187,874,466,725.78/499,118.06
  6. Step 6: Final answer
    x = 376,412.88

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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.