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Finding the Fourth Proportional to 706.85, 1,060.55 and 341.61

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Solution

The fourth proportional to 706.85, 1,060.55 and 341.61 is: 512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.85 : 1,060.55 = 341.61 : x
  2. Step 2: Convert to fraction form
    706.85/1,060.55 = 341.61/x
  3. Step 3: Cross multiply
    706.85x = 1,060.55 × 341.61
  4. Step 4: Simplify right side
    706.85x = 362,292.78
  5. Step 5: Solve for x
    x = 362,292.78/706.85
  6. Step 6: Final answer
    x = 512.55

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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.