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Finding the Fourth Proportional to 601.20, 900.18 and 528.30

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Solution

The fourth proportional to 601.20, 900.18 and 528.30 is: 791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.20 : 900.18 = 528.30 : x
  2. Step 2: Convert to fraction form
    601.20/900.18 = 528.30/x
  3. Step 3: Cross multiply
    601.20x = 900.18 × 528.30
  4. Step 4: Simplify right side
    601.20x = 475,565.09
  5. Step 5: Solve for x
    x = 475,565.09/601.20
  6. Step 6: Final answer
    x = 791.03

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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.