Home / 815,343.40-1,223,074.83-216,291.28

Finding the Fourth Proportional to 815,343.40, 1,223,074.83 and 216,291.28

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Solution

The fourth proportional to 815,343.40, 1,223,074.83 and 216,291.28 is: 324,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,343.40 : 1,223,074.83 = 216,291.28 : x
  2. Step 2: Convert to fraction form
    815,343.40/1,223,074.83 = 216,291.28/x
  3. Step 3: Cross multiply
    815,343.40x = 1,223,074.83 × 216,291.28
  4. Step 4: Simplify right side
    815,343.40x = 264,540,420,516.48
  5. Step 5: Solve for x
    x = 264,540,420,516.48/815,343.40
  6. Step 6: Final answer
    x = 324,452.76

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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.