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Finding the Fourth Proportional to 419,352.65, 628,939.67 and 119,753.70

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Solution

The fourth proportional to 419,352.65, 628,939.67 and 119,753.70 is: 179,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,352.65 : 628,939.67 = 119,753.70 : x
  2. Step 2: Convert to fraction form
    419,352.65/628,939.67 = 119,753.70/x
  3. Step 3: Cross multiply
    419,352.65x = 628,939.67 × 119,753.70
  4. Step 4: Simplify right side
    419,352.65x = 75,317,852,559.28
  5. Step 5: Solve for x
    x = 75,317,852,559.28/419,352.65
  6. Step 6: Final answer
    x = 179,605.05

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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.