Home / 498,531.82-687,970.39-272,177.32

Finding the Fourth Proportional to 498,531.82, 687,970.39 and 272,177.32

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Solution

The fourth proportional to 498,531.82, 687,970.39 and 272,177.32 is: 375,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,531.82 : 687,970.39 = 272,177.32 : x
  2. Step 2: Convert to fraction form
    498,531.82/687,970.39 = 272,177.32/x
  3. Step 3: Cross multiply
    498,531.82x = 687,970.39 × 272,177.32
  4. Step 4: Simplify right side
    498,531.82x = 187,249,936,989.56
  5. Step 5: Solve for x
    x = 187,249,936,989.56/498,531.82
  6. Step 6: Final answer
    x = 375,602.78

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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.