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Finding the Fourth Proportional to 483,530.08, 667,244.34 and 289,840.87

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Solution

The fourth proportional to 483,530.08, 667,244.34 and 289,840.87 is: 399,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,530.08 : 667,244.34 = 289,840.87 : x
  2. Step 2: Convert to fraction form
    483,530.08/667,244.34 = 289,840.87/x
  3. Step 3: Cross multiply
    483,530.08x = 667,244.34 × 289,840.87
  4. Step 4: Simplify right side
    483,530.08x = 193,394,680,008.18
  5. Step 5: Solve for x
    x = 193,394,680,008.18/483,530.08
  6. Step 6: Final answer
    x = 399,964.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.