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Finding the Fourth Proportional to 599,657.40, 899,958.12 and 279,644.61

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Solution

The fourth proportional to 599,657.40, 899,958.12 and 279,644.61 is: 419,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,657.40 : 899,958.12 = 279,644.61 : x
  2. Step 2: Convert to fraction form
    599,657.40/899,958.12 = 279,644.61/x
  3. Step 3: Cross multiply
    599,657.40x = 899,958.12 × 279,644.61
  4. Step 4: Simplify right side
    599,657.40x = 251,668,437,483.73
  5. Step 5: Solve for x
    x = 251,668,437,483.73/599,657.40
  6. Step 6: Final answer
    x = 419,687.04

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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.