Home / 724,921.52-1,000,470.30-438,599.48

Finding the Fourth Proportional to 724,921.52, 1,000,470.30 and 438,599.48

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Solution

The fourth proportional to 724,921.52, 1,000,470.30 and 438,599.48 is: 605,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,921.52 : 1,000,470.30 = 438,599.48 : x
  2. Step 2: Convert to fraction form
    724,921.52/1,000,470.30 = 438,599.48/x
  3. Step 3: Cross multiply
    724,921.52x = 1,000,470.30 × 438,599.48
  4. Step 4: Simplify right side
    724,921.52x = 438,805,753,335.44
  5. Step 5: Solve for x
    x = 438,805,753,335.44/724,921.52
  6. Step 6: Final answer
    x = 605,314.84

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1.5x scale

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.