Home / 991,456.92-1,368,214.14-538,747.80

Finding the Fourth Proportional to 991,456.92, 1,368,214.14 and 538,747.80

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Solution

The fourth proportional to 991,456.92, 1,368,214.14 and 538,747.80 is: 743,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,456.92 : 1,368,214.14 = 538,747.80 : x
  2. Step 2: Convert to fraction form
    991,456.92/1,368,214.14 = 538,747.80/x
  3. Step 3: Cross multiply
    991,456.92x = 1,368,214.14 × 538,747.80
  4. Step 4: Simplify right side
    991,456.92x = 737,122,357,853.89
  5. Step 5: Solve for x
    x = 737,122,357,853.89/991,456.92
  6. Step 6: Final answer
    x = 743,473.91

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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.