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Finding the Fourth Proportional to 624.22, 857.02 and 608.16

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Solution

The fourth proportional to 624.22, 857.02 and 608.16 is: 834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.22 : 857.02 = 608.16 : x
  2. Step 2: Convert to fraction form
    624.22/857.02 = 608.16/x
  3. Step 3: Cross multiply
    624.22x = 857.02 × 608.16
  4. Step 4: Simplify right side
    624.22x = 521,205.28
  5. Step 5: Solve for x
    x = 521,205.28/624.22
  6. Step 6: Final answer
    x = 834.97

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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.