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Finding the Fourth Proportional to 706.85, 975.52 and 412.05

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Solution

The fourth proportional to 706.85, 975.52 and 412.05 is: 568.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.85 : 975.52 = 412.05 : x
  2. Step 2: Convert to fraction form
    706.85/975.52 = 412.05/x
  3. Step 3: Cross multiply
    706.85x = 975.52 × 412.05
  4. Step 4: Simplify right side
    706.85x = 401,963.02
  5. Step 5: Solve for x
    x = 401,963.02/706.85
  6. Step 6: Final answer
    x = 568.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.