Home / 991,573.76-1,368,371.20-538,864.80

Finding the Fourth Proportional to 991,573.76, 1,368,371.20 and 538,864.80

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Solution

The fourth proportional to 991,573.76, 1,368,371.20 and 538,864.80 is: 743,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,573.76 : 1,368,371.20 = 538,864.80 : x
  2. Step 2: Convert to fraction form
    991,573.76/1,368,371.20 = 538,864.80/x
  3. Step 3: Cross multiply
    991,573.76x = 1,368,371.20 × 538,864.80
  4. Step 4: Simplify right side
    991,573.76x = 737,367,073,013.76
  5. Step 5: Solve for x
    x = 737,367,073,013.76/991,573.76
  6. Step 6: Final answer
    x = 743,633.10

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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.