Home / 680,282.73-1,020,387.20-206,931.20

Finding the Fourth Proportional to 680,282.73, 1,020,387.20 and 206,931.20

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Solution

The fourth proportional to 680,282.73, 1,020,387.20 and 206,931.20 is: 310,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,282.73 : 1,020,387.20 = 206,931.20 : x
  2. Step 2: Convert to fraction form
    680,282.73/1,020,387.20 = 206,931.20/x
  3. Step 3: Cross multiply
    680,282.73x = 1,020,387.20 × 206,931.20
  4. Step 4: Simplify right side
    680,282.73x = 211,149,941,624.05
  5. Step 5: Solve for x
    x = 211,149,941,624.05/680,282.73
  6. Step 6: Final answer
    x = 310,385.57

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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.