Home / 498,102.21-687,380.18-271,747.71

Finding the Fourth Proportional to 498,102.21, 687,380.18 and 271,747.71

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Solution

The fourth proportional to 498,102.21, 687,380.18 and 271,747.71 is: 375,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,102.21 : 687,380.18 = 271,747.71 : x
  2. Step 2: Convert to fraction form
    498,102.21/687,380.18 = 271,747.71/x
  3. Step 3: Cross multiply
    498,102.21x = 687,380.18 × 271,747.71
  4. Step 4: Simplify right side
    498,102.21x = 186,793,988,455.65
  5. Step 5: Solve for x
    x = 186,793,988,455.65/498,102.21
  6. Step 6: Final answer
    x = 375,011.36

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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.