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Finding the Fourth Proportional to 547,737.64, 755,872.82 and 306,061.86

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Solution

The fourth proportional to 547,737.64, 755,872.82 and 306,061.86 is: 422,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,737.64 : 755,872.82 = 306,061.86 : x
  2. Step 2: Convert to fraction form
    547,737.64/755,872.82 = 306,061.86/x
  3. Step 3: Cross multiply
    547,737.64x = 755,872.82 × 306,061.86
  4. Step 4: Simplify right side
    547,737.64x = 231,343,841,212.65
  5. Step 5: Solve for x
    x = 231,343,841,212.65/547,737.64
  6. Step 6: Final answer
    x = 422,362.50

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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.