Home / 680,314.20-1,020,471.30-206,998.80

Finding the Fourth Proportional to 680,314.20, 1,020,471.30 and 206,998.80

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Solution

The fourth proportional to 680,314.20, 1,020,471.30 and 206,998.80 is: 310,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,314.20 : 1,020,471.30 = 206,998.80 : x
  2. Step 2: Convert to fraction form
    680,314.20/1,020,471.30 = 206,998.80/x
  3. Step 3: Cross multiply
    680,314.20x = 1,020,471.30 × 206,998.80
  4. Step 4: Simplify right side
    680,314.20x = 211,236,334,534.44
  5. Step 5: Solve for x
    x = 211,236,334,534.44/680,314.20
  6. Step 6: Final answer
    x = 310,498.20

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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.