Home / 498,221.74-687,539.55-271,863.34

Finding the Fourth Proportional to 498,221.74, 687,539.55 and 271,863.34

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Solution

The fourth proportional to 498,221.74, 687,539.55 and 271,863.34 is: 375,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,221.74 : 687,539.55 = 271,863.34 : x
  2. Step 2: Convert to fraction form
    498,221.74/687,539.55 = 271,863.34/x
  3. Step 3: Cross multiply
    498,221.74x = 687,539.55 × 271,863.34
  4. Step 4: Simplify right side
    498,221.74x = 186,916,798,445.10
  5. Step 5: Solve for x
    x = 186,916,798,445.10/498,221.74
  6. Step 6: Final answer
    x = 375,167.89

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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.