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Finding the Fourth Proportional to 979,473, 1,469,349.80 and 305,614.56

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Solution

The fourth proportional to 979,473, 1,469,349.80 and 305,614.56 is: 458,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,473 : 1,469,349.80 = 305,614.56 : x
  2. Step 2: Convert to fraction form
    979,473/1,469,349.80 = 305,614.56/x
  3. Step 3: Cross multiply
    979,473x = 1,469,349.80 × 305,614.56
  4. Step 4: Simplify right side
    979,473x = 449,054,692,613.09
  5. Step 5: Solve for x
    x = 449,054,692,613.09/979,473
  6. Step 6: Final answer
    x = 458,465.62

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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.