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Finding the Fourth Proportional to 624.46, 857.15 and 552.96

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Solution

The fourth proportional to 624.46, 857.15 and 552.96 is: 759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.46 : 857.15 = 552.96 : x
  2. Step 2: Convert to fraction form
    624.46/857.15 = 552.96/x
  3. Step 3: Cross multiply
    624.46x = 857.15 × 552.96
  4. Step 4: Simplify right side
    624.46x = 473,968.97
  5. Step 5: Solve for x
    x = 473,968.97/624.46
  6. Step 6: Final answer
    x = 759.01

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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.