Home / 981,054.54-1,353,012.20-636,551

Finding the Fourth Proportional to 981,054.54, 1,353,012.20 and 636,551

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Solution

The fourth proportional to 981,054.54, 1,353,012.20 and 636,551 is: 877,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,054.54 : 1,353,012.20 = 636,551 : x
  2. Step 2: Convert to fraction form
    981,054.54/1,353,012.20 = 636,551/x
  3. Step 3: Cross multiply
    981,054.54x = 1,353,012.20 × 636,551
  4. Step 4: Simplify right side
    981,054.54x = 861,261,268,922.20
  5. Step 5: Solve for x
    x = 861,261,268,922.20/981,054.54
  6. Step 6: Final answer
    x = 877,893.36

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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.