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Finding the Fourth Proportional to 695.77, 1,044.06 and 284.85

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Solution

The fourth proportional to 695.77, 1,044.06 and 284.85 is: 427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.77 : 1,044.06 = 284.85 : x
  2. Step 2: Convert to fraction form
    695.77/1,044.06 = 284.85/x
  3. Step 3: Cross multiply
    695.77x = 1,044.06 × 284.85
  4. Step 4: Simplify right side
    695.77x = 297,400.49
  5. Step 5: Solve for x
    x = 297,400.49/695.77
  6. Step 6: Final answer
    x = 427.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.