Home / 680,616.12-1,019,140.56-479,849.52

Finding the Fourth Proportional to 680,616.12, 1,019,140.56 and 479,849.52

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Solution

The fourth proportional to 680,616.12, 1,019,140.56 and 479,849.52 is: 718,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,616.12 : 1,019,140.56 = 479,849.52 : x
  2. Step 2: Convert to fraction form
    680,616.12/1,019,140.56 = 479,849.52/x
  3. Step 3: Cross multiply
    680,616.12x = 1,019,140.56 × 479,849.52
  4. Step 4: Simplify right side
    680,616.12x = 489,034,108,528.53
  5. Step 5: Solve for x
    x = 489,034,108,528.53/680,616.12
  6. Step 6: Final answer
    x = 718,516.79

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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.