Home / 728,382.68-1,092,535.14-279,318.68

Finding the Fourth Proportional to 728,382.68, 1,092,535.14 and 279,318.68

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Solution

The fourth proportional to 728,382.68, 1,092,535.14 and 279,318.68 is: 418,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,382.68 : 1,092,535.14 = 279,318.68 : x
  2. Step 2: Convert to fraction form
    728,382.68/1,092,535.14 = 279,318.68/x
  3. Step 3: Cross multiply
    728,382.68x = 1,092,535.14 × 279,318.68
  4. Step 4: Simplify right side
    728,382.68x = 305,165,473,158.42
  5. Step 5: Solve for x
    x = 305,165,473,158.42/728,382.68
  6. Step 6: Final answer
    x = 418,963.11

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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.