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Finding the Fourth Proportional to 644,234.06, 888,788.04 and 372,251.84

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Solution

The fourth proportional to 644,234.06, 888,788.04 and 372,251.84 is: 513,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,234.06 : 888,788.04 = 372,251.84 : x
  2. Step 2: Convert to fraction form
    644,234.06/888,788.04 = 372,251.84/x
  3. Step 3: Cross multiply
    644,234.06x = 888,788.04 × 372,251.84
  4. Step 4: Simplify right side
    644,234.06x = 330,852,983,259.99
  5. Step 5: Solve for x
    x = 330,852,983,259.99/644,234.06
  6. Step 6: Final answer
    x = 513,560.22

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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.