Home / 752,760.54-1,038,781.53-408,589.11

Finding the Fourth Proportional to 752,760.54, 1,038,781.53 and 408,589.11

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Solution

The fourth proportional to 752,760.54, 1,038,781.53 and 408,589.11 is: 563,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,760.54 : 1,038,781.53 = 408,589.11 : x
  2. Step 2: Convert to fraction form
    752,760.54/1,038,781.53 = 408,589.11/x
  3. Step 3: Cross multiply
    752,760.54x = 1,038,781.53 × 408,589.11
  4. Step 4: Simplify right side
    752,760.54x = 424,434,820,827.14
  5. Step 5: Solve for x
    x = 424,434,820,827.14/752,760.54
  6. Step 6: Final answer
    x = 563,837.77

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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.