Home / 820,653.90-1,132,691.34-481,231.50

Finding the Fourth Proportional to 820,653.90, 1,132,691.34 and 481,231.50

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Solution

The fourth proportional to 820,653.90, 1,132,691.34 and 481,231.50 is: 664,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,653.90 : 1,132,691.34 = 481,231.50 : x
  2. Step 2: Convert to fraction form
    820,653.90/1,132,691.34 = 481,231.50/x
  3. Step 3: Cross multiply
    820,653.90x = 1,132,691.34 × 481,231.50
  4. Step 4: Simplify right side
    820,653.90x = 545,086,752,585.21
  5. Step 5: Solve for x
    x = 545,086,752,585.21/820,653.90
  6. Step 6: Final answer
    x = 664,210.27

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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.