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Finding the Fourth Proportional to 687.63, 949.14 and 595.37

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Solution

The fourth proportional to 687.63, 949.14 and 595.37 is: 821.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    687.63 : 949.14 = 595.37 : x
  2. Step 2: Convert to fraction form
    687.63/949.14 = 595.37/x
  3. Step 3: Cross multiply
    687.63x = 949.14 × 595.37
  4. Step 4: Simplify right side
    687.63x = 565,089.48
  5. Step 5: Solve for x
    x = 565,089.48/687.63
  6. Step 6: Final answer
    x = 821.79

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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.