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Finding the Fourth Proportional to 647,817.70, 970,414.35 and 367,006.90

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Solution

The fourth proportional to 647,817.70, 970,414.35 and 367,006.90 is: 549,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,817.70 : 970,414.35 = 367,006.90 : x
  2. Step 2: Convert to fraction form
    647,817.70/970,414.35 = 367,006.90/x
  3. Step 3: Cross multiply
    647,817.70x = 970,414.35 × 367,006.90
  4. Step 4: Simplify right side
    647,817.70x = 356,148,762,309.02
  5. Step 5: Solve for x
    x = 356,148,762,309.02/647,817.70
  6. Step 6: Final answer
    x = 549,766.95

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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.