Home / 752,739.29-1,038,781.31-408,575.48

Finding the Fourth Proportional to 752,739.29, 1,038,781.31 and 408,575.48

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Solution

The fourth proportional to 752,739.29, 1,038,781.31 and 408,575.48 is: 563,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,739.29 : 1,038,781.31 = 408,575.48 : x
  2. Step 2: Convert to fraction form
    752,739.29/1,038,781.31 = 408,575.48/x
  3. Step 3: Cross multiply
    752,739.29x = 1,038,781.31 × 408,575.48
  4. Step 4: Simplify right side
    752,739.29x = 424,420,570,305.40
  5. Step 5: Solve for x
    x = 424,420,570,305.40/752,739.29
  6. Step 6: Final answer
    x = 563,834.75

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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.