Home / 1,188,327.52-1,639,892.82-644,463.28

Finding the Fourth Proportional to 1,188,327.52, 1,639,892.82 and 644,463.28

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Solution

The fourth proportional to 1,188,327.52, 1,639,892.82 and 644,463.28 is: 889,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,327.52 : 1,639,892.82 = 644,463.28 : x
  2. Step 2: Convert to fraction form
    1,188,327.52/1,639,892.82 = 644,463.28/x
  3. Step 3: Cross multiply
    1,188,327.52x = 1,639,892.82 × 644,463.28
  4. Step 4: Simplify right side
    1,188,327.52x = 1,056,850,705,625.65
  5. Step 5: Solve for x
    x = 1,056,850,705,625.65/1,188,327.52
  6. Step 6: Final answer
    x = 889,359.78

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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.