Home / 987,640.92-1,363,055.08-557,948.73

Finding the Fourth Proportional to 987,640.92, 1,363,055.08 and 557,948.73

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Solution

The fourth proportional to 987,640.92, 1,363,055.08 and 557,948.73 is: 770,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,640.92 : 1,363,055.08 = 557,948.73 : x
  2. Step 2: Convert to fraction form
    987,640.92/1,363,055.08 = 557,948.73/x
  3. Step 3: Cross multiply
    987,640.92x = 1,363,055.08 × 557,948.73
  4. Step 4: Simplify right side
    987,640.92x = 760,514,850,806.05
  5. Step 5: Solve for x
    x = 760,514,850,806.05/987,640.92
  6. Step 6: Final answer
    x = 770,031.73

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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.