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Finding the Fourth Proportional to 647,634.35, 971,451.53 and 529,439.15

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Solution

The fourth proportional to 647,634.35, 971,451.53 and 529,439.15 is: 794,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,634.35 : 971,451.53 = 529,439.15 : x
  2. Step 2: Convert to fraction form
    647,634.35/971,451.53 = 529,439.15/x
  3. Step 3: Cross multiply
    647,634.35x = 971,451.53 × 529,439.15
  4. Step 4: Simplify right side
    647,634.35x = 514,324,469,662.20
  5. Step 5: Solve for x
    x = 514,324,469,662.20/647,634.35
  6. Step 6: Final answer
    x = 794,158.73

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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.