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Finding the Fourth Proportional to 442,493.75, 663,238.76 and 389,082.62

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Solution

The fourth proportional to 442,493.75, 663,238.76 and 389,082.62 is: 583,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,493.75 : 663,238.76 = 389,082.62 : x
  2. Step 2: Convert to fraction form
    442,493.75/663,238.76 = 389,082.62/x
  3. Step 3: Cross multiply
    442,493.75x = 663,238.76 × 389,082.62
  4. Step 4: Simplify right side
    442,493.75x = 258,054,669,164.74
  5. Step 5: Solve for x
    x = 258,054,669,164.74/442,493.75
  6. Step 6: Final answer
    x = 583,182.64

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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.