Home / 820,651.68-1,132,688.25-481,229.28

Finding the Fourth Proportional to 820,651.68, 1,132,688.25 and 481,229.28

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Solution

The fourth proportional to 820,651.68, 1,132,688.25 and 481,229.28 is: 664,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,651.68 : 1,132,688.25 = 481,229.28 : x
  2. Step 2: Convert to fraction form
    820,651.68/1,132,688.25 = 481,229.28/x
  3. Step 3: Cross multiply
    820,651.68x = 1,132,688.25 × 481,229.28
  4. Step 4: Simplify right side
    820,651.68x = 545,082,751,011.96
  5. Step 5: Solve for x
    x = 545,082,751,011.96/820,651.68
  6. Step 6: Final answer
    x = 664,207.20

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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.