Home / 981,615.96-1,472,381.11-307,681.89

Finding the Fourth Proportional to 981,615.96, 1,472,381.11 and 307,681.89

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Solution

The fourth proportional to 981,615.96, 1,472,381.11 and 307,681.89 is: 461,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,615.96 : 1,472,381.11 = 307,681.89 : x
  2. Step 2: Convert to fraction form
    981,615.96/1,472,381.11 = 307,681.89/x
  3. Step 3: Cross multiply
    981,615.96x = 1,472,381.11 × 307,681.89
  4. Step 4: Simplify right side
    981,615.96x = 453,025,002,725.10
  5. Step 5: Solve for x
    x = 453,025,002,725.10/981,615.96
  6. Step 6: Final answer
    x = 461,509.41

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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.