Home / 820,244.80-1,230,367.20-806,420.80

Finding the Fourth Proportional to 820,244.80, 1,230,367.20 and 806,420.80

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Solution

The fourth proportional to 820,244.80, 1,230,367.20 and 806,420.80 is: 1,209,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,244.80 : 1,230,367.20 = 806,420.80 : x
  2. Step 2: Convert to fraction form
    820,244.80/1,230,367.20 = 806,420.80/x
  3. Step 3: Cross multiply
    820,244.80x = 1,230,367.20 × 806,420.80
  4. Step 4: Simplify right side
    820,244.80x = 992,193,701,717.76
  5. Step 5: Solve for x
    x = 992,193,701,717.76/820,244.80
  6. Step 6: Final answer
    x = 1,209,631.20

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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.