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Finding the Fourth Proportional to 560,635.09, 840,362.04 and 279,561.85

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Solution

The fourth proportional to 560,635.09, 840,362.04 and 279,561.85 is: 419,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,635.09 : 840,362.04 = 279,561.85 : x
  2. Step 2: Convert to fraction form
    560,635.09/840,362.04 = 279,561.85/x
  3. Step 3: Cross multiply
    560,635.09x = 840,362.04 × 279,561.85
  4. Step 4: Simplify right side
    560,635.09x = 234,933,164,471.27
  5. Step 5: Solve for x
    x = 234,933,164,471.27/560,635.09
  6. Step 6: Final answer
    x = 419,048.27

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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.