Home / 823,470.40-1,235,263.20-324,769.60

Finding the Fourth Proportional to 823,470.40, 1,235,263.20 and 324,769.60

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Solution

The fourth proportional to 823,470.40, 1,235,263.20 and 324,769.60 is: 487,177.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,470.40 : 1,235,263.20 = 324,769.60 : x
  2. Step 2: Convert to fraction form
    823,470.40/1,235,263.20 = 324,769.60/x
  3. Step 3: Cross multiply
    823,470.40x = 1,235,263.20 × 324,769.60
  4. Step 4: Simplify right side
    823,470.40x = 401,175,935,358.72
  5. Step 5: Solve for x
    x = 401,175,935,358.72/823,470.40
  6. Step 6: Final answer
    x = 487,177.12

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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.