Home / 498,487.34-687,909.03-272,132.84

Finding the Fourth Proportional to 498,487.34, 687,909.03 and 272,132.84

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Solution

The fourth proportional to 498,487.34, 687,909.03 and 272,132.84 is: 375,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,487.34 : 687,909.03 = 272,132.84 : x
  2. Step 2: Convert to fraction form
    498,487.34/687,909.03 = 272,132.84/x
  3. Step 3: Cross multiply
    498,487.34x = 687,909.03 × 272,132.84
  4. Step 4: Simplify right side
    498,487.34x = 187,202,637,995.55
  5. Step 5: Solve for x
    x = 187,202,637,995.55/498,487.34
  6. Step 6: Final answer
    x = 375,541.41

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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.