Home / 815,234.34-1,222,261-410,675.78

Finding the Fourth Proportional to 815,234.34, 1,222,261 and 410,675.78

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Solution

The fourth proportional to 815,234.34, 1,222,261 and 410,675.78 is: 615,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,234.34 : 1,222,261 = 410,675.78 : x
  2. Step 2: Convert to fraction form
    815,234.34/1,222,261 = 410,675.78/x
  3. Step 3: Cross multiply
    815,234.34x = 1,222,261 × 410,675.78
  4. Step 4: Simplify right side
    815,234.34x = 501,952,989,538.58
  5. Step 5: Solve for x
    x = 501,952,989,538.58/815,234.34
  6. Step 6: Final answer
    x = 615,716.20

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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.