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Finding the Fourth Proportional to 635.70, 951.58 and 581.87

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Solution

The fourth proportional to 635.70, 951.58 and 581.87 is: 871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.70 : 951.58 = 581.87 : x
  2. Step 2: Convert to fraction form
    635.70/951.58 = 581.87/x
  3. Step 3: Cross multiply
    635.70x = 951.58 × 581.87
  4. Step 4: Simplify right side
    635.70x = 553,698.96
  5. Step 5: Solve for x
    x = 553,698.96/635.70
  6. Step 6: Final answer
    x = 871.00

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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.