Home / 981,615.46-1,472,380.36-307,681.39

Finding the Fourth Proportional to 981,615.46, 1,472,380.36 and 307,681.39

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Solution

The fourth proportional to 981,615.46, 1,472,380.36 and 307,681.39 is: 461,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,615.46 : 1,472,380.36 = 307,681.39 : x
  2. Step 2: Convert to fraction form
    981,615.46/1,472,380.36 = 307,681.39/x
  3. Step 3: Cross multiply
    981,615.46x = 1,472,380.36 × 307,681.39
  4. Step 4: Simplify right side
    981,615.46x = 453,024,035,773.50
  5. Step 5: Solve for x
    x = 453,024,035,773.50/981,615.46
  6. Step 6: Final answer
    x = 461,508.66

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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.