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Finding the Fourth Proportional to 492.17, 734.61 and 484.07

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Solution

The fourth proportional to 492.17, 734.61 and 484.07 is: 722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.17 : 734.61 = 484.07 : x
  2. Step 2: Convert to fraction form
    492.17/734.61 = 484.07/x
  3. Step 3: Cross multiply
    492.17x = 734.61 × 484.07
  4. Step 4: Simplify right side
    492.17x = 355,600.24
  5. Step 5: Solve for x
    x = 355,600.24/492.17
  6. Step 6: Final answer
    x = 722.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.