Home / 981,886.12-1,354,336.50-637,105.96

Finding the Fourth Proportional to 981,886.12, 1,354,336.50 and 637,105.96

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Solution

The fourth proportional to 981,886.12, 1,354,336.50 and 637,105.96 is: 878,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,886.12 : 1,354,336.50 = 637,105.96 : x
  2. Step 2: Convert to fraction form
    981,886.12/1,354,336.50 = 637,105.96/x
  3. Step 3: Cross multiply
    981,886.12x = 1,354,336.50 × 637,105.96
  4. Step 4: Simplify right side
    981,886.12x = 862,855,855,995.54
  5. Step 5: Solve for x
    x = 862,855,855,995.54/981,886.12
  6. Step 6: Final answer
    x = 878,773.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.