Home / 331,400.20-497,489.10-329,067.40

Finding the Fourth Proportional to 331,400.20, 497,489.10 and 329,067.40

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Solution

The fourth proportional to 331,400.20, 497,489.10 and 329,067.40 is: 493,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,400.20 : 497,489.10 = 329,067.40 : x
  2. Step 2: Convert to fraction form
    331,400.20/497,489.10 = 329,067.40/x
  3. Step 3: Cross multiply
    331,400.20x = 497,489.10 × 329,067.40
  4. Step 4: Simplify right side
    331,400.20x = 163,707,444,665.34
  5. Step 5: Solve for x
    x = 163,707,444,665.34/331,400.20
  6. Step 6: Final answer
    x = 493,987.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.