Home / 1,098,491.60-1,644,972.60-722,478.80

Finding the Fourth Proportional to 1,098,491.60, 1,644,972.60 and 722,478.80

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Solution

The fourth proportional to 1,098,491.60, 1,644,972.60 and 722,478.80 is: 1,081,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,491.60 : 1,644,972.60 = 722,478.80 : x
  2. Step 2: Convert to fraction form
    1,098,491.60/1,644,972.60 = 722,478.80/x
  3. Step 3: Cross multiply
    1,098,491.60x = 1,644,972.60 × 722,478.80
  4. Step 4: Simplify right side
    1,098,491.60x = 1,188,457,830,080.88
  5. Step 5: Solve for x
    x = 1,188,457,830,080.88/1,098,491.60
  6. Step 6: Final answer
    x = 1,081,899.79

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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.