Home / 815,849.28-1,223,589.12-310,230

Finding the Fourth Proportional to 815,849.28, 1,223,589.12 and 310,230

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Solution

The fourth proportional to 815,849.28, 1,223,589.12 and 310,230 is: 465,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,849.28 : 1,223,589.12 = 310,230 : x
  2. Step 2: Convert to fraction form
    815,849.28/1,223,589.12 = 310,230/x
  3. Step 3: Cross multiply
    815,849.28x = 1,223,589.12 × 310,230
  4. Step 4: Simplify right side
    815,849.28x = 379,594,052,697.60
  5. Step 5: Solve for x
    x = 379,594,052,697.60/815,849.28
  6. Step 6: Final answer
    x = 465,274.73

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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.