Home / 724,679.28-1,091,359.13-660,036.42

Finding the Fourth Proportional to 724,679.28, 1,091,359.13 and 660,036.42

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Solution

The fourth proportional to 724,679.28, 1,091,359.13 and 660,036.42 is: 994,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,679.28 : 1,091,359.13 = 660,036.42 : x
  2. Step 2: Convert to fraction form
    724,679.28/1,091,359.13 = 660,036.42/x
  3. Step 3: Cross multiply
    724,679.28x = 1,091,359.13 × 660,036.42
  4. Step 4: Simplify right side
    724,679.28x = 720,336,769,799.33
  5. Step 5: Solve for x
    x = 720,336,769,799.33/724,679.28
  6. Step 6: Final answer
    x = 994,007.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.