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Finding the Fourth Proportional to 667.94, 1,001.05 and 462.18

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Solution

The fourth proportional to 667.94, 1,001.05 and 462.18 is: 692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.94 : 1,001.05 = 462.18 : x
  2. Step 2: Convert to fraction form
    667.94/1,001.05 = 462.18/x
  3. Step 3: Cross multiply
    667.94x = 1,001.05 × 462.18
  4. Step 4: Simplify right side
    667.94x = 462,665.29
  5. Step 5: Solve for x
    x = 462,665.29/667.94
  6. Step 6: Final answer
    x = 692.67

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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.