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Finding the Fourth Proportional to 637,553.30, 879,791.97 and 351,019.85

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Solution

The fourth proportional to 637,553.30, 879,791.97 and 351,019.85 is: 484,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,553.30 : 879,791.97 = 351,019.85 : x
  2. Step 2: Convert to fraction form
    637,553.30/879,791.97 = 351,019.85/x
  3. Step 3: Cross multiply
    637,553.30x = 879,791.97 × 351,019.85
  4. Step 4: Simplify right side
    637,553.30x = 308,824,443,141.13
  5. Step 5: Solve for x
    x = 308,824,443,141.13/637,553.30
  6. Step 6: Final answer
    x = 484,390.00

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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.