Home / 744,491.76-1,117,382.40-389,753.88

Finding the Fourth Proportional to 744,491.76, 1,117,382.40 and 389,753.88

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Solution

The fourth proportional to 744,491.76, 1,117,382.40 and 389,753.88 is: 584,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,491.76 : 1,117,382.40 = 389,753.88 : x
  2. Step 2: Convert to fraction form
    744,491.76/1,117,382.40 = 389,753.88/x
  3. Step 3: Cross multiply
    744,491.76x = 1,117,382.40 × 389,753.88
  4. Step 4: Simplify right side
    744,491.76x = 435,504,125,843.71
  5. Step 5: Solve for x
    x = 435,504,125,843.71/744,491.76
  6. Step 6: Final answer
    x = 584,968.36

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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.