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Finding the Fourth Proportional to 419,957.87, 579,591.06 and 238,697.04

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Solution

The fourth proportional to 419,957.87, 579,591.06 and 238,697.04 is: 329,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,957.87 : 579,591.06 = 238,697.04 : x
  2. Step 2: Convert to fraction form
    419,957.87/579,591.06 = 238,697.04/x
  3. Step 3: Cross multiply
    419,957.87x = 579,591.06 × 238,697.04
  4. Step 4: Simplify right side
    419,957.87x = 138,346,668,450.62
  5. Step 5: Solve for x
    x = 138,346,668,450.62/419,957.87
  6. Step 6: Final answer
    x = 329,429.88

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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.