Home / 769,616.64-1,062,367.92-688,901.76

Finding the Fourth Proportional to 769,616.64, 1,062,367.92 and 688,901.76

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Solution

The fourth proportional to 769,616.64, 1,062,367.92 and 688,901.76 is: 950,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,616.64 : 1,062,367.92 = 688,901.76 : x
  2. Step 2: Convert to fraction form
    769,616.64/1,062,367.92 = 688,901.76/x
  3. Step 3: Cross multiply
    769,616.64x = 1,062,367.92 × 688,901.76
  4. Step 4: Simplify right side
    769,616.64x = 731,867,129,855.54
  5. Step 5: Solve for x
    x = 731,867,129,855.54/769,616.64
  6. Step 6: Final answer
    x = 950,950.24

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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.