Home / 815,470.38-1,223,110.44-216,478.08

Finding the Fourth Proportional to 815,470.38, 1,223,110.44 and 216,478.08

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Solution

The fourth proportional to 815,470.38, 1,223,110.44 and 216,478.08 is: 324,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,470.38 : 1,223,110.44 = 216,478.08 : x
  2. Step 2: Convert to fraction form
    815,470.38/1,223,110.44 = 216,478.08/x
  3. Step 3: Cross multiply
    815,470.38x = 1,223,110.44 × 216,478.08
  4. Step 4: Simplify right side
    815,470.38x = 264,776,599,679.16
  5. Step 5: Solve for x
    x = 264,776,599,679.16/815,470.38
  6. Step 6: Final answer
    x = 324,691.87

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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.