Home / 681,787.80-1,020,713.40-416,067.30

Finding the Fourth Proportional to 681,787.80, 1,020,713.40 and 416,067.30

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Solution

The fourth proportional to 681,787.80, 1,020,713.40 and 416,067.30 is: 622,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,787.80 : 1,020,713.40 = 416,067.30 : x
  2. Step 2: Convert to fraction form
    681,787.80/1,020,713.40 = 416,067.30/x
  3. Step 3: Cross multiply
    681,787.80x = 1,020,713.40 × 416,067.30
  4. Step 4: Simplify right side
    681,787.80x = 424,685,468,411.82
  5. Step 5: Solve for x
    x = 424,685,468,411.82/681,787.80
  6. Step 6: Final answer
    x = 622,899.78

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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.