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Finding the Fourth Proportional to 384,116.20, 576,174.30 and 317,631.40

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Solution

The fourth proportional to 384,116.20, 576,174.30 and 317,631.40 is: 476,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,116.20 : 576,174.30 = 317,631.40 : x
  2. Step 2: Convert to fraction form
    384,116.20/576,174.30 = 317,631.40/x
  3. Step 3: Cross multiply
    384,116.20x = 576,174.30 × 317,631.40
  4. Step 4: Simplify right side
    384,116.20x = 183,011,049,553.02
  5. Step 5: Solve for x
    x = 183,011,049,553.02/384,116.20
  6. Step 6: Final answer
    x = 476,447.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.