Home / 1,081,105.04-1,491,966.96-717,902.60

Finding the Fourth Proportional to 1,081,105.04, 1,491,966.96 and 717,902.60

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Solution

The fourth proportional to 1,081,105.04, 1,491,966.96 and 717,902.60 is: 990,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,105.04 : 1,491,966.96 = 717,902.60 : x
  2. Step 2: Convert to fraction form
    1,081,105.04/1,491,966.96 = 717,902.60/x
  3. Step 3: Cross multiply
    1,081,105.04x = 1,491,966.96 × 717,902.60
  4. Step 4: Simplify right side
    1,081,105.04x = 1,071,086,959,698.10
  5. Step 5: Solve for x
    x = 1,071,086,959,698.10/1,081,105.04
  6. Step 6: Final answer
    x = 990,733.48

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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.