Home / 1,858,021.20-2,788,781.40-1,149,433.20

Finding the Fourth Proportional to 1,858,021.20, 2,788,781.40 and 1,149,433.20

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Solution

The fourth proportional to 1,858,021.20, 2,788,781.40 and 1,149,433.20 is: 1,725,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,021.20 : 2,788,781.40 = 1,149,433.20 : x
  2. Step 2: Convert to fraction form
    1,858,021.20/2,788,781.40 = 1,149,433.20/x
  3. Step 3: Cross multiply
    1,858,021.20x = 2,788,781.40 × 1,149,433.20
  4. Step 4: Simplify right side
    1,858,021.20x = 3,205,517,928,702.48
  5. Step 5: Solve for x
    x = 3,205,517,928,702.48/1,858,021.20
  6. Step 6: Final answer
    x = 1,725,232.16

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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.