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Finding the Fourth Proportional to 528.15, 796.06 and 498.39

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Solution

The fourth proportional to 528.15, 796.06 and 498.39 is: 751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.15 : 796.06 = 498.39 : x
  2. Step 2: Convert to fraction form
    528.15/796.06 = 498.39/x
  3. Step 3: Cross multiply
    528.15x = 796.06 × 498.39
  4. Step 4: Simplify right side
    528.15x = 396,745.98
  5. Step 5: Solve for x
    x = 396,745.98/528.15
  6. Step 6: Final answer
    x = 751.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.