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Finding the Fourth Proportional to 452,458.33, 678,686.85 and 115,499.11

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Solution

The fourth proportional to 452,458.33, 678,686.85 and 115,499.11 is: 173,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,458.33 : 678,686.85 = 115,499.11 : x
  2. Step 2: Convert to fraction form
    452,458.33/678,686.85 = 115,499.11/x
  3. Step 3: Cross multiply
    452,458.33x = 678,686.85 × 115,499.11
  4. Step 4: Simplify right side
    452,458.33x = 78,387,727,143.70
  5. Step 5: Solve for x
    x = 78,387,727,143.70/452,458.33
  6. Step 6: Final answer
    x = 173,248.50

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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.