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Finding the Fourth Proportional to 600.58, 900.88 and 438.58

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Solution

The fourth proportional to 600.58, 900.88 and 438.58 is: 657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.58 : 900.88 = 438.58 : x
  2. Step 2: Convert to fraction form
    600.58/900.88 = 438.58/x
  3. Step 3: Cross multiply
    600.58x = 900.88 × 438.58
  4. Step 4: Simplify right side
    600.58x = 395,107.95
  5. Step 5: Solve for x
    x = 395,107.95/600.58
  6. Step 6: Final answer
    x = 657.88

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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.