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Finding the Fourth Proportional to 553.35, 763.32 and 460.47

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Solution

The fourth proportional to 553.35, 763.32 and 460.47 is: 635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.35 : 763.32 = 460.47 : x
  2. Step 2: Convert to fraction form
    553.35/763.32 = 460.47/x
  3. Step 3: Cross multiply
    553.35x = 763.32 × 460.47
  4. Step 4: Simplify right side
    553.35x = 351,485.96
  5. Step 5: Solve for x
    x = 351,485.96/553.35
  6. Step 6: Final answer
    x = 635.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.