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Finding the Fourth Proportional to 695,310.93, 959,449.77 and 389,344.77

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Solution

The fourth proportional to 695,310.93, 959,449.77 and 389,344.77 is: 537,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,310.93 : 959,449.77 = 389,344.77 : x
  2. Step 2: Convert to fraction form
    695,310.93/959,449.77 = 389,344.77/x
  3. Step 3: Cross multiply
    695,310.93x = 959,449.77 × 389,344.77
  4. Step 4: Simplify right side
    695,310.93x = 373,556,750,027.20
  5. Step 5: Solve for x
    x = 373,556,750,027.20/695,310.93
  6. Step 6: Final answer
    x = 537,251.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.