Home / 422,844.57-634,264.02-102,992.58

Finding the Fourth Proportional to 422,844.57, 634,264.02 and 102,992.58

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Solution

The fourth proportional to 422,844.57, 634,264.02 and 102,992.58 is: 154,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,844.57 : 634,264.02 = 102,992.58 : x
  2. Step 2: Convert to fraction form
    422,844.57/634,264.02 = 102,992.58/x
  3. Step 3: Cross multiply
    422,844.57x = 634,264.02 × 102,992.58
  4. Step 4: Simplify right side
    422,844.57x = 65,324,487,820.97
  5. Step 5: Solve for x
    x = 65,324,487,820.97/422,844.57
  6. Step 6: Final answer
    x = 154,488.18

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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.