Home / 726,489.20-1,087,660.20-705,753.20

Finding the Fourth Proportional to 726,489.20, 1,087,660.20 and 705,753.20

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Solution

The fourth proportional to 726,489.20, 1,087,660.20 and 705,753.20 is: 1,056,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,489.20 : 1,087,660.20 = 705,753.20 : x
  2. Step 2: Convert to fraction form
    726,489.20/1,087,660.20 = 705,753.20/x
  3. Step 3: Cross multiply
    726,489.20x = 1,087,660.20 × 705,753.20
  4. Step 4: Simplify right side
    726,489.20x = 767,619,666,662.64
  5. Step 5: Solve for x
    x = 767,619,666,662.64/726,489.20
  6. Step 6: Final answer
    x = 1,056,615.39

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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.