Home / 987,545.28-1,362,840.48-557,843.52

Finding the Fourth Proportional to 987,545.28, 1,362,840.48 and 557,843.52

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Solution

The fourth proportional to 987,545.28, 1,362,840.48 and 557,843.52 is: 769,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,545.28 : 1,362,840.48 = 557,843.52 : x
  2. Step 2: Convert to fraction form
    987,545.28/1,362,840.48 = 557,843.52/x
  3. Step 3: Cross multiply
    987,545.28x = 1,362,840.48 × 557,843.52
  4. Step 4: Simplify right side
    987,545.28x = 760,251,730,561.69
  5. Step 5: Solve for x
    x = 760,251,730,561.69/987,545.28
  6. Step 6: Final answer
    x = 769,839.87

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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.