Home / 809,010.80-1,213,516.20-247,972.40

Finding the Fourth Proportional to 809,010.80, 1,213,516.20 and 247,972.40

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Solution

The fourth proportional to 809,010.80, 1,213,516.20 and 247,972.40 is: 371,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,010.80 : 1,213,516.20 = 247,972.40 : x
  2. Step 2: Convert to fraction form
    809,010.80/1,213,516.20 = 247,972.40/x
  3. Step 3: Cross multiply
    809,010.80x = 1,213,516.20 × 247,972.40
  4. Step 4: Simplify right side
    809,010.80x = 300,918,524,552.88
  5. Step 5: Solve for x
    x = 300,918,524,552.88/809,010.80
  6. Step 6: Final answer
    x = 371,958.60

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Double scale
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Similar ratio
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1.5x scale

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.