Home / 1,005,989.20-1,508,983.80-769,793.20

Finding the Fourth Proportional to 1,005,989.20, 1,508,983.80 and 769,793.20

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Solution

The fourth proportional to 1,005,989.20, 1,508,983.80 and 769,793.20 is: 1,154,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,989.20 : 1,508,983.80 = 769,793.20 : x
  2. Step 2: Convert to fraction form
    1,005,989.20/1,508,983.80 = 769,793.20/x
  3. Step 3: Cross multiply
    1,005,989.20x = 1,508,983.80 × 769,793.20
  4. Step 4: Simplify right side
    1,005,989.20x = 1,161,605,468,150.16
  5. Step 5: Solve for x
    x = 1,161,605,468,150.16/1,005,989.20
  6. Step 6: Final answer
    x = 1,154,689.80

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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.