Home / 752,642.20-1,038,654-408,481.09

Finding the Fourth Proportional to 752,642.20, 1,038,654 and 408,481.09

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Solution

The fourth proportional to 752,642.20, 1,038,654 and 408,481.09 is: 563,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,642.20 : 1,038,654 = 408,481.09 : x
  2. Step 2: Convert to fraction form
    752,642.20/1,038,654 = 408,481.09/x
  3. Step 3: Cross multiply
    752,642.20x = 1,038,654 × 408,481.09
  4. Step 4: Simplify right side
    752,642.20x = 424,270,518,052.86
  5. Step 5: Solve for x
    x = 424,270,518,052.86/752,642.20
  6. Step 6: Final answer
    x = 563,708.12

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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.