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Finding the Fourth Proportional to 695.13, 958.86 and 529.28

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Solution

The fourth proportional to 695.13, 958.86 and 529.28 is: 730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.13 : 958.86 = 529.28 : x
  2. Step 2: Convert to fraction form
    695.13/958.86 = 529.28/x
  3. Step 3: Cross multiply
    695.13x = 958.86 × 529.28
  4. Step 4: Simplify right side
    695.13x = 507,511.10
  5. Step 5: Solve for x
    x = 507,511.10/695.13
  6. Step 6: Final answer
    x = 730.09

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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.