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Finding the Fourth Proportional to 695.63, 1,043.44 and 501.87

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Solution

The fourth proportional to 695.63, 1,043.44 and 501.87 is: 752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.63 : 1,043.44 = 501.87 : x
  2. Step 2: Convert to fraction form
    695.63/1,043.44 = 501.87/x
  3. Step 3: Cross multiply
    695.63x = 1,043.44 × 501.87
  4. Step 4: Simplify right side
    695.63x = 523,669.98
  5. Step 5: Solve for x
    x = 523,669.98/695.63
  6. Step 6: Final answer
    x = 752.80

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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.