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Finding the Fourth Proportional to 847.69, 1,268.34 and 501.22

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Solution

The fourth proportional to 847.69, 1,268.34 and 501.22 is: 749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.69 : 1,268.34 = 501.22 : x
  2. Step 2: Convert to fraction form
    847.69/1,268.34 = 501.22/x
  3. Step 3: Cross multiply
    847.69x = 1,268.34 × 501.22
  4. Step 4: Simplify right side
    847.69x = 635,717.37
  5. Step 5: Solve for x
    x = 635,717.37/847.69
  6. Step 6: Final answer
    x = 749.94

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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.