Home / 981,175.25-1,471,762.89-307,309.29

Finding the Fourth Proportional to 981,175.25, 1,471,762.89 and 307,309.29

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Solution

The fourth proportional to 981,175.25, 1,471,762.89 and 307,309.29 is: 460,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,175.25 : 1,471,762.89 = 307,309.29 : x
  2. Step 2: Convert to fraction form
    981,175.25/1,471,762.89 = 307,309.29/x
  3. Step 3: Cross multiply
    981,175.25x = 1,471,762.89 × 307,309.29
  4. Step 4: Simplify right side
    981,175.25x = 452,286,408,774.25
  5. Step 5: Solve for x
    x = 452,286,408,774.25/981,175.25
  6. Step 6: Final answer
    x = 460,963.94

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Double scale
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Similar ratio
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1.5x scale

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.