Home / 981,168.36-1,471,752.56-307,302.40

Finding the Fourth Proportional to 981,168.36, 1,471,752.56 and 307,302.40

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Solution

The fourth proportional to 981,168.36, 1,471,752.56 and 307,302.40 is: 460,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,168.36 : 1,471,752.56 = 307,302.40 : x
  2. Step 2: Convert to fraction form
    981,168.36/1,471,752.56 = 307,302.40/x
  3. Step 3: Cross multiply
    981,168.36x = 1,471,752.56 × 307,302.40
  4. Step 4: Simplify right side
    981,168.36x = 452,273,093,894.14
  5. Step 5: Solve for x
    x = 452,273,093,894.14/981,168.36
  6. Step 6: Final answer
    x = 460,953.61

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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.