Home / 991,432.88-1,368,185.56-538,723.88

Finding the Fourth Proportional to 991,432.88, 1,368,185.56 and 538,723.88

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Solution

The fourth proportional to 991,432.88, 1,368,185.56 and 538,723.88 is: 743,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,432.88 : 1,368,185.56 = 538,723.88 : x
  2. Step 2: Convert to fraction form
    991,432.88/1,368,185.56 = 538,723.88/x
  3. Step 3: Cross multiply
    991,432.88x = 1,368,185.56 × 538,723.88
  4. Step 4: Simplify right side
    991,432.88x = 737,074,233,443.17
  5. Step 5: Solve for x
    x = 737,074,233,443.17/991,432.88
  6. Step 6: Final answer
    x = 743,443.40

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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.