Home / 981,078.60-1,468,118.70-680,147.40

Finding the Fourth Proportional to 981,078.60, 1,468,118.70 and 680,147.40

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Solution

The fourth proportional to 981,078.60, 1,468,118.70 and 680,147.40 is: 1,017,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,078.60 : 1,468,118.70 = 680,147.40 : x
  2. Step 2: Convert to fraction form
    981,078.60/1,468,118.70 = 680,147.40/x
  3. Step 3: Cross multiply
    981,078.60x = 1,468,118.70 × 680,147.40
  4. Step 4: Simplify right side
    981,078.60x = 998,537,116,696.38
  5. Step 5: Solve for x
    x = 998,537,116,696.38/981,078.60
  6. Step 6: Final answer
    x = 1,017,795.23

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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.