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Finding the Fourth Proportional to 708.66, 976.58 and 541.90

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Solution

The fourth proportional to 708.66, 976.58 and 541.90 is: 746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.66 : 976.58 = 541.90 : x
  2. Step 2: Convert to fraction form
    708.66/976.58 = 541.90/x
  3. Step 3: Cross multiply
    708.66x = 976.58 × 541.90
  4. Step 4: Simplify right side
    708.66x = 529,205.99
  5. Step 5: Solve for x
    x = 529,205.99/708.66
  6. Step 6: Final answer
    x = 746.77

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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.