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Finding the Fourth Proportional to 853,083, 1,279,620.84 and 347,531.22

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Solution

The fourth proportional to 853,083, 1,279,620.84 and 347,531.22 is: 521,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,083 : 1,279,620.84 = 347,531.22 : x
  2. Step 2: Convert to fraction form
    853,083/1,279,620.84 = 347,531.22/x
  3. Step 3: Cross multiply
    853,083x = 1,279,620.84 × 347,531.22
  4. Step 4: Simplify right side
    853,083x = 444,708,191,662.63
  5. Step 5: Solve for x
    x = 444,708,191,662.63/853,083
  6. Step 6: Final answer
    x = 521,295.34

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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.