Home / 769,658.64-1,062,425.88-688,943.76

Finding the Fourth Proportional to 769,658.64, 1,062,425.88 and 688,943.76

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Solution

The fourth proportional to 769,658.64, 1,062,425.88 and 688,943.76 is: 951,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,658.64 : 1,062,425.88 = 688,943.76 : x
  2. Step 2: Convert to fraction form
    769,658.64/1,062,425.88 = 688,943.76/x
  3. Step 3: Cross multiply
    769,658.64x = 1,062,425.88 × 688,943.76
  4. Step 4: Simplify right side
    769,658.64x = 731,951,680,488.51
  5. Step 5: Solve for x
    x = 731,951,680,488.51/769,658.64
  6. Step 6: Final answer
    x = 951,008.20

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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.