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Finding the Fourth Proportional to 542,787.15, 749,028.51 and 327,889.74

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Solution

The fourth proportional to 542,787.15, 749,028.51 and 327,889.74 is: 452,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,787.15 : 749,028.51 = 327,889.74 : x
  2. Step 2: Convert to fraction form
    542,787.15/749,028.51 = 327,889.74/x
  3. Step 3: Cross multiply
    542,787.15x = 749,028.51 × 327,889.74
  4. Step 4: Simplify right side
    542,787.15x = 245,598,763,396.49
  5. Step 5: Solve for x
    x = 245,598,763,396.49/542,787.15
  6. Step 6: Final answer
    x = 452,477.11

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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.