Home / 981,477.18-1,472,216.12-307,610.78

Finding the Fourth Proportional to 981,477.18, 1,472,216.12 and 307,610.78

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Solution

The fourth proportional to 981,477.18, 1,472,216.12 and 307,610.78 is: 461,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,477.18 : 1,472,216.12 = 307,610.78 : x
  2. Step 2: Convert to fraction form
    981,477.18/1,472,216.12 = 307,610.78/x
  3. Step 3: Cross multiply
    981,477.18x = 1,472,216.12 × 307,610.78
  4. Step 4: Simplify right side
    981,477.18x = 452,869,540,102.64
  5. Step 5: Solve for x
    x = 452,869,540,102.64/981,477.18
  6. Step 6: Final answer
    x = 461,416.27

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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.