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Finding the Fourth Proportional to 442,662.14, 663,708.65 and 290,679.65

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Solution

The fourth proportional to 442,662.14, 663,708.65 and 290,679.65 is: 435,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,662.14 : 663,708.65 = 290,679.65 : x
  2. Step 2: Convert to fraction form
    442,662.14/663,708.65 = 290,679.65/x
  3. Step 3: Cross multiply
    442,662.14x = 663,708.65 × 290,679.65
  4. Step 4: Simplify right side
    442,662.14x = 192,926,598,083.97
  5. Step 5: Solve for x
    x = 192,926,598,083.97/442,662.14
  6. Step 6: Final answer
    x = 435,832.62

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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.