Home / 498,132.56-687,425.16-271,782.80

Finding the Fourth Proportional to 498,132.56, 687,425.16 and 271,782.80

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Solution

The fourth proportional to 498,132.56, 687,425.16 and 271,782.80 is: 375,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,132.56 : 687,425.16 = 271,782.80 : x
  2. Step 2: Convert to fraction form
    498,132.56/687,425.16 = 271,782.80/x
  3. Step 3: Cross multiply
    498,132.56x = 687,425.16 × 271,782.80
  4. Step 4: Simplify right side
    498,132.56x = 186,830,334,775.25
  5. Step 5: Solve for x
    x = 186,830,334,775.25/498,132.56
  6. Step 6: Final answer
    x = 375,061.48

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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.