Home / 1,042,545.29-1,438,884.54-715,589.60

Finding the Fourth Proportional to 1,042,545.29, 1,438,884.54 and 715,589.60

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Solution

The fourth proportional to 1,042,545.29, 1,438,884.54 and 715,589.60 is: 987,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,545.29 : 1,438,884.54 = 715,589.60 : x
  2. Step 2: Convert to fraction form
    1,042,545.29/1,438,884.54 = 715,589.60/x
  3. Step 3: Cross multiply
    1,042,545.29x = 1,438,884.54 × 715,589.60
  4. Step 4: Simplify right side
    1,042,545.29x = 1,029,650,805,230.36
  5. Step 5: Solve for x
    x = 1,029,650,805,230.36/1,042,545.29
  6. Step 6: Final answer
    x = 987,631.73

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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.