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Finding the Fourth Proportional to 662.51, 913.73 and 463.27

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Solution

The fourth proportional to 662.51, 913.73 and 463.27 is: 638.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.51 : 913.73 = 463.27 : x
  2. Step 2: Convert to fraction form
    662.51/913.73 = 463.27/x
  3. Step 3: Cross multiply
    662.51x = 913.73 × 463.27
  4. Step 4: Simplify right side
    662.51x = 423,303.42
  5. Step 5: Solve for x
    x = 423,303.42/662.51
  6. Step 6: Final answer
    x = 638.94

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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.