Home / 1,098,489.60-1,644,969.60-722,476.80

Finding the Fourth Proportional to 1,098,489.60, 1,644,969.60 and 722,476.80

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Solution

The fourth proportional to 1,098,489.60, 1,644,969.60 and 722,476.80 is: 1,081,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,489.60 : 1,644,969.60 = 722,476.80 : x
  2. Step 2: Convert to fraction form
    1,098,489.60/1,644,969.60 = 722,476.80/x
  3. Step 3: Cross multiply
    1,098,489.60x = 1,644,969.60 × 722,476.80
  4. Step 4: Simplify right side
    1,098,489.60x = 1,188,452,372,705.28
  5. Step 5: Solve for x
    x = 1,188,452,372,705.28/1,098,489.60
  6. Step 6: Final answer
    x = 1,081,896.79

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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.