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Finding the Fourth Proportional to 633.97, 875.74 and 477.79

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Solution

The fourth proportional to 633.97, 875.74 and 477.79 is: 660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.97 : 875.74 = 477.79 : x
  2. Step 2: Convert to fraction form
    633.97/875.74 = 477.79/x
  3. Step 3: Cross multiply
    633.97x = 875.74 × 477.79
  4. Step 4: Simplify right side
    633.97x = 418,419.81
  5. Step 5: Solve for x
    x = 418,419.81/633.97
  6. Step 6: Final answer
    x = 660.00

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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.