Home / 981,176.37-1,471,764.57-307,310.40

Finding the Fourth Proportional to 981,176.37, 1,471,764.57 and 307,310.40

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Solution

The fourth proportional to 981,176.37, 1,471,764.57 and 307,310.40 is: 460,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,176.37 : 1,471,764.57 = 307,310.40 : x
  2. Step 2: Convert to fraction form
    981,176.37/1,471,764.57 = 307,310.40/x
  3. Step 3: Cross multiply
    981,176.37x = 1,471,764.57 × 307,310.40
  4. Step 4: Simplify right side
    981,176.37x = 452,288,558,712.53
  5. Step 5: Solve for x
    x = 452,288,558,712.53/981,176.37
  6. Step 6: Final answer
    x = 460,965.60

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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.