Home / 815,086.80-1,223,942.40-615,632.40

Finding the Fourth Proportional to 815,086.80, 1,223,942.40 and 615,632.40

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Solution

The fourth proportional to 815,086.80, 1,223,942.40 and 615,632.40 is: 924,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,086.80 : 1,223,942.40 = 615,632.40 : x
  2. Step 2: Convert to fraction form
    815,086.80/1,223,942.40 = 615,632.40/x
  3. Step 3: Cross multiply
    815,086.80x = 1,223,942.40 × 615,632.40
  4. Step 4: Simplify right side
    815,086.80x = 753,498,597,173.76
  5. Step 5: Solve for x
    x = 753,498,597,173.76/815,086.80
  6. Step 6: Final answer
    x = 924,439.70

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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.