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Finding the Fourth Proportional to 419,068.68, 628,700.62 and 119,553.36

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Solution

The fourth proportional to 419,068.68, 628,700.62 and 119,553.36 is: 179,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,068.68 : 628,700.62 = 119,553.36 : x
  2. Step 2: Convert to fraction form
    419,068.68/628,700.62 = 119,553.36/x
  3. Step 3: Cross multiply
    419,068.68x = 628,700.62 × 119,553.36
  4. Step 4: Simplify right side
    419,068.68x = 75,163,271,555.08
  5. Step 5: Solve for x
    x = 75,163,271,555.08/419,068.68
  6. Step 6: Final answer
    x = 179,357.88

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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.