Home / 815,211.82-1,222,351.17-341,497.90

Finding the Fourth Proportional to 815,211.82, 1,222,351.17 and 341,497.90

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Solution

The fourth proportional to 815,211.82, 1,222,351.17 and 341,497.90 is: 512,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,211.82 : 1,222,351.17 = 341,497.90 : x
  2. Step 2: Convert to fraction form
    815,211.82/1,222,351.17 = 341,497.90/x
  3. Step 3: Cross multiply
    815,211.82x = 1,222,351.17 × 341,497.90
  4. Step 4: Simplify right side
    815,211.82x = 417,430,357,617.54
  5. Step 5: Solve for x
    x = 417,430,357,617.54/815,211.82
  6. Step 6: Final answer
    x = 512,051.40

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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.