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Finding the Fourth Proportional to 414,487.30, 621,730.89 and 114,967.88

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Solution

The fourth proportional to 414,487.30, 621,730.89 and 114,967.88 is: 172,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,487.30 : 621,730.89 = 114,967.88 : x
  2. Step 2: Convert to fraction form
    414,487.30/621,730.89 = 114,967.88/x
  3. Step 3: Cross multiply
    414,487.30x = 621,730.89 × 114,967.88
  4. Step 4: Simplify right side
    414,487.30x = 71,479,082,353.81
  5. Step 5: Solve for x
    x = 71,479,082,353.81/414,487.30
  6. Step 6: Final answer
    x = 172,451.80

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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.