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Finding the Fourth Proportional to 662,062.70, 991,764.84 and 560,425.52

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Solution

The fourth proportional to 662,062.70, 991,764.84 and 560,425.52 is: 839,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,062.70 : 991,764.84 = 560,425.52 : x
  2. Step 2: Convert to fraction form
    662,062.70/991,764.84 = 560,425.52/x
  3. Step 3: Cross multiply
    662,062.70x = 991,764.84 × 560,425.52
  4. Step 4: Simplify right side
    662,062.70x = 555,810,326,174.72
  5. Step 5: Solve for x
    x = 555,810,326,174.72/662,062.70
  6. Step 6: Final answer
    x = 839,513.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.