Home / 981,346.34-1,471,416.64-381,608.41

Finding the Fourth Proportional to 981,346.34, 1,471,416.64 and 381,608.41

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Solution

The fourth proportional to 981,346.34, 1,471,416.64 and 381,608.41 is: 572,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,346.34 : 1,471,416.64 = 381,608.41 : x
  2. Step 2: Convert to fraction form
    981,346.34/1,471,416.64 = 381,608.41/x
  3. Step 3: Cross multiply
    981,346.34x = 1,471,416.64 × 381,608.41
  4. Step 4: Simplify right side
    981,346.34x = 561,504,964,437.94
  5. Step 5: Solve for x
    x = 561,504,964,437.94/981,346.34
  6. Step 6: Final answer
    x = 572,178.18

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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.