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Finding the Fourth Proportional to 1,704.84, 2,556.84 and 472.20

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Solution

The fourth proportional to 1,704.84, 2,556.84 and 472.20 is: 708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.84 : 2,556.84 = 472.20 : x
  2. Step 2: Convert to fraction form
    1,704.84/2,556.84 = 472.20/x
  3. Step 3: Cross multiply
    1,704.84x = 2,556.84 × 472.20
  4. Step 4: Simplify right side
    1,704.84x = 1,207,339.85
  5. Step 5: Solve for x
    x = 1,207,339.85/1,704.84
  6. Step 6: Final answer
    x = 708.18

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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.