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Finding the Fourth Proportional to 419,059.05, 628,686.18 and 119,543.73

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Solution

The fourth proportional to 419,059.05, 628,686.18 and 119,543.73 is: 179,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,059.05 : 628,686.18 = 119,543.73 : x
  2. Step 2: Convert to fraction form
    419,059.05/628,686.18 = 119,543.73/x
  3. Step 3: Cross multiply
    419,059.05x = 628,686.18 × 119,543.73
  4. Step 4: Simplify right side
    419,059.05x = 75,155,490,956.65
  5. Step 5: Solve for x
    x = 75,155,490,956.65/419,059.05
  6. Step 6: Final answer
    x = 179,343.44

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1.5x scale

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.