Home / 989,171.60-1,481,449.97-722,270.12

Finding the Fourth Proportional to 989,171.60, 1,481,449.97 and 722,270.12

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Solution

The fourth proportional to 989,171.60, 1,481,449.97 and 722,270.12 is: 1,081,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,171.60 : 1,481,449.97 = 722,270.12 : x
  2. Step 2: Convert to fraction form
    989,171.60/1,481,449.97 = 722,270.12/x
  3. Step 3: Cross multiply
    989,171.60x = 1,481,449.97 × 722,270.12
  4. Step 4: Simplify right side
    989,171.60x = 1,070,007,042,004.32
  5. Step 5: Solve for x
    x = 1,070,007,042,004.32/989,171.60
  6. Step 6: Final answer
    x = 1,081,720.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.