Home / 681,878.40-1,022,817.60-238,691.20

Finding the Fourth Proportional to 681,878.40, 1,022,817.60 and 238,691.20

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Solution

The fourth proportional to 681,878.40, 1,022,817.60 and 238,691.20 is: 358,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,878.40 : 1,022,817.60 = 238,691.20 : x
  2. Step 2: Convert to fraction form
    681,878.40/1,022,817.60 = 238,691.20/x
  3. Step 3: Cross multiply
    681,878.40x = 1,022,817.60 × 238,691.20
  4. Step 4: Simplify right side
    681,878.40x = 244,137,560,325.12
  5. Step 5: Solve for x
    x = 244,137,560,325.12/681,878.40
  6. Step 6: Final answer
    x = 358,036.80

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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.