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Finding the Fourth Proportional to 1,761.04, 2,640.44 and 606.56

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Solution

The fourth proportional to 1,761.04, 2,640.44 and 606.56 is: 909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.04 : 2,640.44 = 606.56 : x
  2. Step 2: Convert to fraction form
    1,761.04/2,640.44 = 606.56/x
  3. Step 3: Cross multiply
    1,761.04x = 2,640.44 × 606.56
  4. Step 4: Simplify right side
    1,761.04x = 1,601,585.29
  5. Step 5: Solve for x
    x = 1,601,585.29/1,761.04
  6. Step 6: Final answer
    x = 909.45

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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.