Home / 991,403.52-1,368,145.20-538,694.48

Finding the Fourth Proportional to 991,403.52, 1,368,145.20 and 538,694.48

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Solution

The fourth proportional to 991,403.52, 1,368,145.20 and 538,694.48 is: 743,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,403.52 : 1,368,145.20 = 538,694.48 : x
  2. Step 2: Convert to fraction form
    991,403.52/1,368,145.20 = 538,694.48/x
  3. Step 3: Cross multiply
    991,403.52x = 1,368,145.20 × 538,694.48
  4. Step 4: Simplify right side
    991,403.52x = 737,012,267,078.50
  5. Step 5: Solve for x
    x = 737,012,267,078.50/991,403.52
  6. Step 6: Final answer
    x = 743,402.92

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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.