Home / 981,368.33-1,469,690.46-664,865.69

Finding the Fourth Proportional to 981,368.33, 1,469,690.46 and 664,865.69

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Solution

The fourth proportional to 981,368.33, 1,469,690.46 and 664,865.69 is: 995,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,368.33 : 1,469,690.46 = 664,865.69 : x
  2. Step 2: Convert to fraction form
    981,368.33/1,469,690.46 = 664,865.69/x
  3. Step 3: Cross multiply
    981,368.33x = 1,469,690.46 × 664,865.69
  4. Step 4: Simplify right side
    981,368.33x = 977,146,754,425.87
  5. Step 5: Solve for x
    x = 977,146,754,425.87/981,368.33
  6. Step 6: Final answer
    x = 995,698.28

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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.