Home / 820,651.95-1,132,688.64-481,229.55

Finding the Fourth Proportional to 820,651.95, 1,132,688.64 and 481,229.55

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Solution

The fourth proportional to 820,651.95, 1,132,688.64 and 481,229.55 is: 664,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,651.95 : 1,132,688.64 = 481,229.55 : x
  2. Step 2: Convert to fraction form
    820,651.95/1,132,688.64 = 481,229.55/x
  3. Step 3: Cross multiply
    820,651.95x = 1,132,688.64 × 481,229.55
  4. Step 4: Simplify right side
    820,651.95x = 545,083,244,517.31
  5. Step 5: Solve for x
    x = 545,083,244,517.31/820,651.95
  6. Step 6: Final answer
    x = 664,207.58

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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.