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Finding the Fourth Proportional to 697.41, 961.98 and 510.91

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Solution

The fourth proportional to 697.41, 961.98 and 510.91 is: 704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.41 : 961.98 = 510.91 : x
  2. Step 2: Convert to fraction form
    697.41/961.98 = 510.91/x
  3. Step 3: Cross multiply
    697.41x = 961.98 × 510.91
  4. Step 4: Simplify right side
    697.41x = 491,480.88
  5. Step 5: Solve for x
    x = 491,480.88/697.41
  6. Step 6: Final answer
    x = 704.72

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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.