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Finding the Fourth Proportional to 419,068.52, 628,700.42 and 119,553.24

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Solution

The fourth proportional to 419,068.52, 628,700.42 and 119,553.24 is: 179,357.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,068.52 : 628,700.42 = 119,553.24 : x
  2. Step 2: Convert to fraction form
    419,068.52/628,700.42 = 119,553.24/x
  3. Step 3: Cross multiply
    419,068.52x = 628,700.42 × 119,553.24
  4. Step 4: Simplify right side
    419,068.52x = 75,163,172,200.36
  5. Step 5: Solve for x
    x = 75,163,172,200.36/419,068.52
  6. Step 6: Final answer
    x = 179,357.72

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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.