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Finding the Fourth Proportional to 695.55, 958.84 and 529.48

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Solution

The fourth proportional to 695.55, 958.84 and 529.48 is: 729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.55 : 958.84 = 529.48 : x
  2. Step 2: Convert to fraction form
    695.55/958.84 = 529.48/x
  3. Step 3: Cross multiply
    695.55x = 958.84 × 529.48
  4. Step 4: Simplify right side
    695.55x = 507,684.21
  5. Step 5: Solve for x
    x = 507,684.21/695.55
  6. Step 6: Final answer
    x = 729.90

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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.