Home / 724,614.20-1,086,921.36-225,978.20

Finding the Fourth Proportional to 724,614.20, 1,086,921.36 and 225,978.20

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Solution

The fourth proportional to 724,614.20, 1,086,921.36 and 225,978.20 is: 338,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,614.20 : 1,086,921.36 = 225,978.20 : x
  2. Step 2: Convert to fraction form
    724,614.20/1,086,921.36 = 225,978.20/x
  3. Step 3: Cross multiply
    724,614.20x = 1,086,921.36 × 225,978.20
  4. Step 4: Simplify right side
    724,614.20x = 245,620,527,039.75
  5. Step 5: Solve for x
    x = 245,620,527,039.75/724,614.20
  6. Step 6: Final answer
    x = 338,967.31

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1.5x scale

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.