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Finding the Fourth Proportional to 617,812.20, 927,236.70 and 302,538.60

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Solution

The fourth proportional to 617,812.20, 927,236.70 and 302,538.60 is: 454,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,812.20 : 927,236.70 = 302,538.60 : x
  2. Step 2: Convert to fraction form
    617,812.20/927,236.70 = 302,538.60/x
  3. Step 3: Cross multiply
    617,812.20x = 927,236.70 × 302,538.60
  4. Step 4: Simplify right side
    617,812.20x = 280,524,893,086.62
  5. Step 5: Solve for x
    x = 280,524,893,086.62/617,812.20
  6. Step 6: Final answer
    x = 454,061.76

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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.