Home / 419,766.40-579,291.19-238,475.04

Finding the Fourth Proportional to 419,766.40, 579,291.19 and 238,475.04

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Solution

The fourth proportional to 419,766.40, 579,291.19 and 238,475.04 is: 329,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,766.40 : 579,291.19 = 238,475.04 : x
  2. Step 2: Convert to fraction form
    419,766.40/579,291.19 = 238,475.04/x
  3. Step 3: Cross multiply
    419,766.40x = 579,291.19 × 238,475.04
  4. Step 4: Simplify right side
    419,766.40x = 138,146,488,279.79
  5. Step 5: Solve for x
    x = 138,146,488,279.79/419,766.40
  6. Step 6: Final answer
    x = 329,103.25

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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.