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Finding the Fourth Proportional to 695,094.28, 959,319.68 and 389,286.88

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Solution

The fourth proportional to 695,094.28, 959,319.68 and 389,286.88 is: 537,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,094.28 : 959,319.68 = 389,286.88 : x
  2. Step 2: Convert to fraction form
    695,094.28/959,319.68 = 389,286.88/x
  3. Step 3: Cross multiply
    695,094.28x = 959,319.68 × 389,286.88
  4. Step 4: Simplify right side
    695,094.28x = 373,450,565,149.80
  5. Step 5: Solve for x
    x = 373,450,565,149.80/695,094.28
  6. Step 6: Final answer
    x = 537,266.06

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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.