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Finding the Fourth Proportional to 647,246.80, 970,524.60 and 272,846.80

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Solution

The fourth proportional to 647,246.80, 970,524.60 and 272,846.80 is: 409,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,246.80 : 970,524.60 = 272,846.80 : x
  2. Step 2: Convert to fraction form
    647,246.80/970,524.60 = 272,846.80/x
  3. Step 3: Cross multiply
    647,246.80x = 970,524.60 × 272,846.80
  4. Step 4: Simplify right side
    647,246.80x = 264,804,531,431.28
  5. Step 5: Solve for x
    x = 264,804,531,431.28/647,246.80
  6. Step 6: Final answer
    x = 409,124.51

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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.