Home / 680,585.81-1,020,640.76-200,686.25

Finding the Fourth Proportional to 680,585.81, 1,020,640.76 and 200,686.25

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Solution

The fourth proportional to 680,585.81, 1,020,640.76 and 200,686.25 is: 300,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,585.81 : 1,020,640.76 = 200,686.25 : x
  2. Step 2: Convert to fraction form
    680,585.81/1,020,640.76 = 200,686.25/x
  3. Step 3: Cross multiply
    680,585.81x = 1,020,640.76 × 200,686.25
  4. Step 4: Simplify right side
    680,585.81x = 204,828,560,614.92
  5. Step 5: Solve for x
    x = 204,828,560,614.92/680,585.81
  6. Step 6: Final answer
    x = 300,959.20

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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.