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Finding the Fourth Proportional to 323,747.10, 485,620.65 and 304,047.90

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Solution

The fourth proportional to 323,747.10, 485,620.65 and 304,047.90 is: 456,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,747.10 : 485,620.65 = 304,047.90 : x
  2. Step 2: Convert to fraction form
    323,747.10/485,620.65 = 304,047.90/x
  3. Step 3: Cross multiply
    323,747.10x = 485,620.65 × 304,047.90
  4. Step 4: Simplify right side
    323,747.10x = 147,651,938,829.14
  5. Step 5: Solve for x
    x = 147,651,938,829.14/323,747.10
  6. Step 6: Final answer
    x = 456,071.85

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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.