Home / 981,728.03-1,472,610.49-307,794.40

Finding the Fourth Proportional to 981,728.03, 1,472,610.49 and 307,794.40

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Solution

The fourth proportional to 981,728.03, 1,472,610.49 and 307,794.40 is: 461,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,728.03 : 1,472,610.49 = 307,794.40 : x
  2. Step 2: Convert to fraction form
    981,728.03/1,472,610.49 = 307,794.40/x
  3. Step 3: Cross multiply
    981,728.03x = 1,472,610.49 × 307,794.40
  4. Step 4: Simplify right side
    981,728.03x = 453,261,257,752.24
  5. Step 5: Solve for x
    x = 453,261,257,752.24/981,728.03
  6. Step 6: Final answer
    x = 461,697.38

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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.