Home / 542,787.36-749,046.72-301,072.80

Finding the Fourth Proportional to 542,787.36, 749,046.72 and 301,072.80

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Solution

The fourth proportional to 542,787.36, 749,046.72 and 301,072.80 is: 415,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,787.36 : 749,046.72 = 301,072.80 : x
  2. Step 2: Convert to fraction form
    542,787.36/749,046.72 = 301,072.80/x
  3. Step 3: Cross multiply
    542,787.36x = 749,046.72 × 301,072.80
  4. Step 4: Simplify right side
    542,787.36x = 225,517,593,321.22
  5. Step 5: Solve for x
    x = 225,517,593,321.22/542,787.36
  6. Step 6: Final answer
    x = 415,480.55

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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.