Home / 991,432.82-1,368,185.49-538,723.82

Finding the Fourth Proportional to 991,432.82, 1,368,185.49 and 538,723.82

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Solution

The fourth proportional to 991,432.82, 1,368,185.49 and 538,723.82 is: 743,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,432.82 : 1,368,185.49 = 538,723.82 : x
  2. Step 2: Convert to fraction form
    991,432.82/1,368,185.49 = 538,723.82/x
  3. Step 3: Cross multiply
    991,432.82x = 1,368,185.49 × 538,723.82
  4. Step 4: Simplify right side
    991,432.82x = 737,074,104,106.83
  5. Step 5: Solve for x
    x = 737,074,104,106.83/991,432.82
  6. Step 6: Final answer
    x = 743,443.32

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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.