Home / 482,708.28-724,181.78-340,831.52

Finding the Fourth Proportional to 482,708.28, 724,181.78 and 340,831.52

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Solution

The fourth proportional to 482,708.28, 724,181.78 and 340,831.52 is: 511,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,708.28 : 724,181.78 = 340,831.52 : x
  2. Step 2: Convert to fraction form
    482,708.28/724,181.78 = 340,831.52/x
  3. Step 3: Cross multiply
    482,708.28x = 724,181.78 × 340,831.52
  4. Step 4: Simplify right side
    482,708.28x = 246,823,976,772.96
  5. Step 5: Solve for x
    x = 246,823,976,772.96/482,708.28
  6. Step 6: Final answer
    x = 511,331.56

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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.