Home / 680,680.80-1,021,021.20-207,304.65

Finding the Fourth Proportional to 680,680.80, 1,021,021.20 and 207,304.65

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Solution

The fourth proportional to 680,680.80, 1,021,021.20 and 207,304.65 is: 310,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,680.80 : 1,021,021.20 = 207,304.65 : x
  2. Step 2: Convert to fraction form
    680,680.80/1,021,021.20 = 207,304.65/x
  3. Step 3: Cross multiply
    680,680.80x = 1,021,021.20 × 207,304.65
  4. Step 4: Simplify right side
    680,680.80x = 211,662,442,508.58
  5. Step 5: Solve for x
    x = 211,662,442,508.58/680,680.80
  6. Step 6: Final answer
    x = 310,956.98

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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.