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Finding the Fourth Proportional to 652.79, 901.43 and 476.75

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Solution

The fourth proportional to 652.79, 901.43 and 476.75 is: 658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.79 : 901.43 = 476.75 : x
  2. Step 2: Convert to fraction form
    652.79/901.43 = 476.75/x
  3. Step 3: Cross multiply
    652.79x = 901.43 × 476.75
  4. Step 4: Simplify right side
    652.79x = 429,749.86
  5. Step 5: Solve for x
    x = 429,749.86/652.79
  6. Step 6: Final answer
    x = 658.33

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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.