Home / 981,615.96-1,472,381.10-307,681.88

Finding the Fourth Proportional to 981,615.96, 1,472,381.10 and 307,681.88

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Solution

The fourth proportional to 981,615.96, 1,472,381.10 and 307,681.88 is: 461,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,615.96 : 1,472,381.10 = 307,681.88 : x
  2. Step 2: Convert to fraction form
    981,615.96/1,472,381.10 = 307,681.88/x
  3. Step 3: Cross multiply
    981,615.96x = 1,472,381.10 × 307,681.88
  4. Step 4: Simplify right side
    981,615.96x = 453,024,977,562.56
  5. Step 5: Solve for x
    x = 453,024,977,562.56/981,615.96
  6. Step 6: Final answer
    x = 461,509.38

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Double scale
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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.