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Finding the Fourth Proportional to 588.72, 813.60 and 472.08

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Solution

The fourth proportional to 588.72, 813.60 and 472.08 is: 652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.72 : 813.60 = 472.08 : x
  2. Step 2: Convert to fraction form
    588.72/813.60 = 472.08/x
  3. Step 3: Cross multiply
    588.72x = 813.60 × 472.08
  4. Step 4: Simplify right side
    588.72x = 384,084.29
  5. Step 5: Solve for x
    x = 384,084.29/588.72
  6. Step 6: Final answer
    x = 652.41

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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.