Home / 815,999.20-1,223,156.40-366,935.20

Finding the Fourth Proportional to 815,999.20, 1,223,156.40 and 366,935.20

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Solution

The fourth proportional to 815,999.20, 1,223,156.40 and 366,935.20 is: 550,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,999.20 : 1,223,156.40 = 366,935.20 : x
  2. Step 2: Convert to fraction form
    815,999.20/1,223,156.40 = 366,935.20/x
  3. Step 3: Cross multiply
    815,999.20x = 1,223,156.40 × 366,935.20
  4. Step 4: Simplify right side
    815,999.20x = 448,819,138,265.28
  5. Step 5: Solve for x
    x = 448,819,138,265.28/815,999.20
  6. Step 6: Final answer
    x = 550,023.99

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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.