Home / 820,449.18-1,132,276.62-457,943.79

Finding the Fourth Proportional to 820,449.18, 1,132,276.62 and 457,943.79

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Solution

The fourth proportional to 820,449.18, 1,132,276.62 and 457,943.79 is: 631,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,449.18 : 1,132,276.62 = 457,943.79 : x
  2. Step 2: Convert to fraction form
    820,449.18/1,132,276.62 = 457,943.79/x
  3. Step 3: Cross multiply
    820,449.18x = 1,132,276.62 × 457,943.79
  4. Step 4: Simplify right side
    820,449.18x = 518,519,046,691.19
  5. Step 5: Solve for x
    x = 518,519,046,691.19/820,449.18
  6. Step 6: Final answer
    x = 631,994.11

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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.