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Finding the Fourth Proportional to 726,662.88, 1,088,418.96 and 351,900

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Solution

The fourth proportional to 726,662.88, 1,088,418.96 and 351,900 is: 527,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,662.88 : 1,088,418.96 = 351,900 : x
  2. Step 2: Convert to fraction form
    726,662.88/1,088,418.96 = 351,900/x
  3. Step 3: Cross multiply
    726,662.88x = 1,088,418.96 × 351,900
  4. Step 4: Simplify right side
    726,662.88x = 383,014,632,024
  5. Step 5: Solve for x
    x = 383,014,632,024/726,662.88
  6. Step 6: Final answer
    x = 527,087.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.