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Finding the Fourth Proportional to 901.30, 1,351.62 and 608.62

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Solution

The fourth proportional to 901.30, 1,351.62 and 608.62 is: 912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.30 : 1,351.62 = 608.62 : x
  2. Step 2: Convert to fraction form
    901.30/1,351.62 = 608.62/x
  3. Step 3: Cross multiply
    901.30x = 1,351.62 × 608.62
  4. Step 4: Simplify right side
    901.30x = 822,622.96
  5. Step 5: Solve for x
    x = 822,622.96/901.30
  6. Step 6: Final answer
    x = 912.71

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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.