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Finding the Fourth Proportional to 950.18, 1,425.69 and 603.42

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Solution

The fourth proportional to 950.18, 1,425.69 and 603.42 is: 905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.18 : 1,425.69 = 603.42 : x
  2. Step 2: Convert to fraction form
    950.18/1,425.69 = 603.42/x
  3. Step 3: Cross multiply
    950.18x = 1,425.69 × 603.42
  4. Step 4: Simplify right side
    950.18x = 860,289.54
  5. Step 5: Solve for x
    x = 860,289.54/950.18
  6. Step 6: Final answer
    x = 905.40

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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.