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Finding the Fourth Proportional to 384,751.70, 576,471.45 and 328,327.10

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Solution

The fourth proportional to 384,751.70, 576,471.45 and 328,327.10 is: 491,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,751.70 : 576,471.45 = 328,327.10 : x
  2. Step 2: Convert to fraction form
    384,751.70/576,471.45 = 328,327.10/x
  3. Step 3: Cross multiply
    384,751.70x = 576,471.45 × 328,327.10
  4. Step 4: Simplify right side
    384,751.70x = 189,271,199,411.30
  5. Step 5: Solve for x
    x = 189,271,199,411.30/384,751.70
  6. Step 6: Final answer
    x = 491,930.77

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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.