Home / 876,442.38-1,311,204.51-663,822.78

Finding the Fourth Proportional to 876,442.38, 1,311,204.51 and 663,822.78

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Solution

The fourth proportional to 876,442.38, 1,311,204.51 and 663,822.78 is: 993,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,442.38 : 1,311,204.51 = 663,822.78 : x
  2. Step 2: Convert to fraction form
    876,442.38/1,311,204.51 = 663,822.78/x
  3. Step 3: Cross multiply
    876,442.38x = 1,311,204.51 × 663,822.78
  4. Step 4: Simplify right side
    876,442.38x = 870,407,422,976.74
  5. Step 5: Solve for x
    x = 870,407,422,976.74/876,442.38
  6. Step 6: Final answer
    x = 993,114.26

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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.