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Finding the Fourth Proportional to 548,553.06, 757,073.25 and 306,849.06

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Solution

The fourth proportional to 548,553.06, 757,073.25 and 306,849.06 is: 423,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,553.06 : 757,073.25 = 306,849.06 : x
  2. Step 2: Convert to fraction form
    548,553.06/757,073.25 = 306,849.06/x
  3. Step 3: Cross multiply
    548,553.06x = 757,073.25 × 306,849.06
  4. Step 4: Simplify right side
    548,553.06x = 232,307,215,113.65
  5. Step 5: Solve for x
    x = 232,307,215,113.65/548,553.06
  6. Step 6: Final answer
    x = 423,490.87

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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.