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Finding the Fourth Proportional to 600.89, 900.15 and 394.84

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Solution

The fourth proportional to 600.89, 900.15 and 394.84 is: 591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.89 : 900.15 = 394.84 : x
  2. Step 2: Convert to fraction form
    600.89/900.15 = 394.84/x
  3. Step 3: Cross multiply
    600.89x = 900.15 × 394.84
  4. Step 4: Simplify right side
    600.89x = 355,414.87
  5. Step 5: Solve for x
    x = 355,414.87/600.89
  6. Step 6: Final answer
    x = 591.49

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1.5x scale

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.