Home / 981,167.36-1,471,751.06-307,301.40

Finding the Fourth Proportional to 981,167.36, 1,471,751.06 and 307,301.40

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Solution

The fourth proportional to 981,167.36, 1,471,751.06 and 307,301.40 is: 460,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,167.36 : 1,471,751.06 = 307,301.40 : x
  2. Step 2: Convert to fraction form
    981,167.36/1,471,751.06 = 307,301.40/x
  3. Step 3: Cross multiply
    981,167.36x = 1,471,751.06 × 307,301.40
  4. Step 4: Simplify right side
    981,167.36x = 452,271,159,652.98
  5. Step 5: Solve for x
    x = 452,271,159,652.98/981,167.36
  6. Step 6: Final answer
    x = 460,952.11

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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.