Home / 499,016.04-688,634.10-272,656.68

Finding the Fourth Proportional to 499,016.04, 688,634.10 and 272,656.68

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Solution

The fourth proportional to 499,016.04, 688,634.10 and 272,656.68 is: 376,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,016.04 : 688,634.10 = 272,656.68 : x
  2. Step 2: Convert to fraction form
    499,016.04/688,634.10 = 272,656.68/x
  3. Step 3: Cross multiply
    499,016.04x = 688,634.10 × 272,656.68
  4. Step 4: Simplify right side
    499,016.04x = 187,760,687,440.79
  5. Step 5: Solve for x
    x = 187,760,687,440.79/499,016.04
  6. Step 6: Final answer
    x = 376,261.83

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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.