Home / 754,797.12-1,131,863.28-399,728.16

Finding the Fourth Proportional to 754,797.12, 1,131,863.28 and 399,728.16

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Solution

The fourth proportional to 754,797.12, 1,131,863.28 and 399,728.16 is: 599,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,797.12 : 1,131,863.28 = 399,728.16 : x
  2. Step 2: Convert to fraction form
    754,797.12/1,131,863.28 = 399,728.16/x
  3. Step 3: Cross multiply
    754,797.12x = 1,131,863.28 × 399,728.16
  4. Step 4: Simplify right side
    754,797.12x = 452,437,626,285.97
  5. Step 5: Solve for x
    x = 452,437,626,285.97/754,797.12
  6. Step 6: Final answer
    x = 599,416.21

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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.