Home / 498,497.03-687,922.40-272,142.53

Finding the Fourth Proportional to 498,497.03, 687,922.40 and 272,142.53

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Solution

The fourth proportional to 498,497.03, 687,922.40 and 272,142.53 is: 375,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,497.03 : 687,922.40 = 272,142.53 : x
  2. Step 2: Convert to fraction form
    498,497.03/687,922.40 = 272,142.53/x
  3. Step 3: Cross multiply
    498,497.03x = 687,922.40 × 272,142.53
  4. Step 4: Simplify right side
    498,497.03x = 187,212,941,018.96
  5. Step 5: Solve for x
    x = 187,212,941,018.96/498,497.03
  6. Step 6: Final answer
    x = 375,554.78

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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.