Home / 1,250,625.78-1,875,939.40-878,310.90

Finding the Fourth Proportional to 1,250,625.78, 1,875,939.40 and 878,310.90

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Solution

The fourth proportional to 1,250,625.78, 1,875,939.40 and 878,310.90 is: 1,317,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,625.78 : 1,875,939.40 = 878,310.90 : x
  2. Step 2: Convert to fraction form
    1,250,625.78/1,875,939.40 = 878,310.90/x
  3. Step 3: Cross multiply
    1,250,625.78x = 1,875,939.40 × 878,310.90
  4. Step 4: Simplify right side
    1,250,625.78x = 1,647,658,022,759.46
  5. Step 5: Solve for x
    x = 1,647,658,022,759.46/1,250,625.78
  6. Step 6: Final answer
    x = 1,317,466.86

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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.