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Finding the Fourth Proportional to 627,633.10, 940,920.54 and 272,379.52

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Solution

The fourth proportional to 627,633.10, 940,920.54 and 272,379.52 is: 408,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,633.10 : 940,920.54 = 272,379.52 : x
  2. Step 2: Convert to fraction form
    627,633.10/940,920.54 = 272,379.52/x
  3. Step 3: Cross multiply
    627,633.10x = 940,920.54 × 272,379.52
  4. Step 4: Simplify right side
    627,633.10x = 256,287,485,043.34
  5. Step 5: Solve for x
    x = 256,287,485,043.34/627,633.10
  6. Step 6: Final answer
    x = 408,339.66

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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.