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Finding the Fourth Proportional to 647,997.48, 894,234.24 and 361,517.40

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Solution

The fourth proportional to 647,997.48, 894,234.24 and 361,517.40 is: 498,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,997.48 : 894,234.24 = 361,517.40 : x
  2. Step 2: Convert to fraction form
    647,997.48/894,234.24 = 361,517.40/x
  3. Step 3: Cross multiply
    647,997.48x = 894,234.24 × 361,517.40
  4. Step 4: Simplify right side
    647,997.48x = 323,281,237,435.78
  5. Step 5: Solve for x
    x = 323,281,237,435.78/647,997.48
  6. Step 6: Final answer
    x = 498,892.74

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1.5x scale

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.