Home / 819,902.80-1,229,854.20-679,934.80

Finding the Fourth Proportional to 819,902.80, 1,229,854.20 and 679,934.80

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Solution

The fourth proportional to 819,902.80, 1,229,854.20 and 679,934.80 is: 1,019,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,902.80 : 1,229,854.20 = 679,934.80 : x
  2. Step 2: Convert to fraction form
    819,902.80/1,229,854.20 = 679,934.80/x
  3. Step 3: Cross multiply
    819,902.80x = 1,229,854.20 × 679,934.80
  4. Step 4: Simplify right side
    819,902.80x = 836,220,669,506.16
  5. Step 5: Solve for x
    x = 836,220,669,506.16/819,902.80
  6. Step 6: Final answer
    x = 1,019,902.20

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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.