Home / 990,107.73-1,366,114.48-560,387.86

Finding the Fourth Proportional to 990,107.73, 1,366,114.48 and 560,387.86

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Solution

The fourth proportional to 990,107.73, 1,366,114.48 and 560,387.86 is: 773,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,107.73 : 1,366,114.48 = 560,387.86 : x
  2. Step 2: Convert to fraction form
    990,107.73/1,366,114.48 = 560,387.86/x
  3. Step 3: Cross multiply
    990,107.73x = 1,366,114.48 × 560,387.86
  4. Step 4: Simplify right side
    990,107.73x = 765,553,969,962.21
  5. Step 5: Solve for x
    x = 765,553,969,962.21/990,107.73
  6. Step 6: Final answer
    x = 773,202.70

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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.