Home / 807,872.10-1,114,812.78-445,276.02

Finding the Fourth Proportional to 807,872.10, 1,114,812.78 and 445,276.02

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Solution

The fourth proportional to 807,872.10, 1,114,812.78 and 445,276.02 is: 614,452.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,872.10 : 1,114,812.78 = 445,276.02 : x
  2. Step 2: Convert to fraction form
    807,872.10/1,114,812.78 = 445,276.02/x
  3. Step 3: Cross multiply
    807,872.10x = 1,114,812.78 × 445,276.02
  4. Step 4: Simplify right side
    807,872.10x = 496,399,397,723.54
  5. Step 5: Solve for x
    x = 496,399,397,723.54/807,872.10
  6. Step 6: Final answer
    x = 614,452.95

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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.