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Finding the Fourth Proportional to 552.07, 757.80 and 488.52

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Solution

The fourth proportional to 552.07, 757.80 and 488.52 is: 670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.07 : 757.80 = 488.52 : x
  2. Step 2: Convert to fraction form
    552.07/757.80 = 488.52/x
  3. Step 3: Cross multiply
    552.07x = 757.80 × 488.52
  4. Step 4: Simplify right side
    552.07x = 370,200.46
  5. Step 5: Solve for x
    x = 370,200.46/552.07
  6. Step 6: Final answer
    x = 670.57

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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.