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Finding the Fourth Proportional to 1,101.02, 1,648.92 and 606.70

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Solution

The fourth proportional to 1,101.02, 1,648.92 and 606.70 is: 908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.02 : 1,648.92 = 606.70 : x
  2. Step 2: Convert to fraction form
    1,101.02/1,648.92 = 606.70/x
  3. Step 3: Cross multiply
    1,101.02x = 1,648.92 × 606.70
  4. Step 4: Simplify right side
    1,101.02x = 1,000,399.76
  5. Step 5: Solve for x
    x = 1,000,399.76/1,101.02
  6. Step 6: Final answer
    x = 908.61

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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.