Home / 981,062.28-1,353,022.89-636,558.75

Finding the Fourth Proportional to 981,062.28, 1,353,022.89 and 636,558.75

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Solution

The fourth proportional to 981,062.28, 1,353,022.89 and 636,558.75 is: 877,904.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,062.28 : 1,353,022.89 = 636,558.75 : x
  2. Step 2: Convert to fraction form
    981,062.28/1,353,022.89 = 636,558.75/x
  3. Step 3: Cross multiply
    981,062.28x = 1,353,022.89 × 636,558.75
  4. Step 4: Simplify right side
    981,062.28x = 861,278,556,072.77
  5. Step 5: Solve for x
    x = 861,278,556,072.77/981,062.28
  6. Step 6: Final answer
    x = 877,904.06

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1.5x scale

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.