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Finding the Fourth Proportional to 1,035.97, 1,554.48 and 480.67

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Solution

The fourth proportional to 1,035.97, 1,554.48 and 480.67 is: 721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.97 : 1,554.48 = 480.67 : x
  2. Step 2: Convert to fraction form
    1,035.97/1,554.48 = 480.67/x
  3. Step 3: Cross multiply
    1,035.97x = 1,554.48 × 480.67
  4. Step 4: Simplify right side
    1,035.97x = 747,191.90
  5. Step 5: Solve for x
    x = 747,191.90/1,035.97
  6. Step 6: Final answer
    x = 721.25

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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.