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Finding the Fourth Proportional to 650.84, 891.64 and 626.18

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Solution

The fourth proportional to 650.84, 891.64 and 626.18 is: 857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.84 : 891.64 = 626.18 : x
  2. Step 2: Convert to fraction form
    650.84/891.64 = 626.18/x
  3. Step 3: Cross multiply
    650.84x = 891.64 × 626.18
  4. Step 4: Simplify right side
    650.84x = 558,327.14
  5. Step 5: Solve for x
    x = 558,327.14/650.84
  6. Step 6: Final answer
    x = 857.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.