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Finding the Fourth Proportional to 708.39, 976.98 and 704.76

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Solution

The fourth proportional to 708.39, 976.98 and 704.76 is: 971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.39 : 976.98 = 704.76 : x
  2. Step 2: Convert to fraction form
    708.39/976.98 = 704.76/x
  3. Step 3: Cross multiply
    708.39x = 976.98 × 704.76
  4. Step 4: Simplify right side
    708.39x = 688,536.42
  5. Step 5: Solve for x
    x = 688,536.42/708.39
  6. Step 6: Final answer
    x = 971.97

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Half scale
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Double scale
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1.5x scale

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.