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Finding the Fourth Proportional to 602.39, 903.72 and 541.91

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Solution

The fourth proportional to 602.39, 903.72 and 541.91 is: 812.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.39 : 903.72 = 541.91 : x
  2. Step 2: Convert to fraction form
    602.39/903.72 = 541.91/x
  3. Step 3: Cross multiply
    602.39x = 903.72 × 541.91
  4. Step 4: Simplify right side
    602.39x = 489,734.91
  5. Step 5: Solve for x
    x = 489,734.91/602.39
  6. Step 6: Final answer
    x = 812.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.