Home / 981,479.37-1,472,219.66-307,613.23

Finding the Fourth Proportional to 981,479.37, 1,472,219.66 and 307,613.23

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Solution

The fourth proportional to 981,479.37, 1,472,219.66 and 307,613.23 is: 461,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,479.37 : 1,472,219.66 = 307,613.23 : x
  2. Step 2: Convert to fraction form
    981,479.37/1,472,219.66 = 307,613.23/x
  3. Step 3: Cross multiply
    981,479.37x = 1,472,219.66 × 307,613.23
  4. Step 4: Simplify right side
    981,479.37x = 452,874,244,882.10
  5. Step 5: Solve for x
    x = 452,874,244,882.10/981,479.37
  6. Step 6: Final answer
    x = 461,420.03

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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.