Home / 680,302.20-1,020,600.90-206,975.25

Finding the Fourth Proportional to 680,302.20, 1,020,600.90 and 206,975.25

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Solution

The fourth proportional to 680,302.20, 1,020,600.90 and 206,975.25 is: 310,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,302.20 : 1,020,600.90 = 206,975.25 : x
  2. Step 2: Convert to fraction form
    680,302.20/1,020,600.90 = 206,975.25/x
  3. Step 3: Cross multiply
    680,302.20x = 1,020,600.90 × 206,975.25
  4. Step 4: Simplify right side
    680,302.20x = 211,239,126,427.73
  5. Step 5: Solve for x
    x = 211,239,126,427.73/680,302.20
  6. Step 6: Final answer
    x = 310,507.78

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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.