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Finding the Fourth Proportional to 611,504.46, 843,847.74 and 339,589.62

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Solution

The fourth proportional to 611,504.46, 843,847.74 and 339,589.62 is: 468,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,504.46 : 843,847.74 = 339,589.62 : x
  2. Step 2: Convert to fraction form
    611,504.46/843,847.74 = 339,589.62/x
  3. Step 3: Cross multiply
    611,504.46x = 843,847.74 × 339,589.62
  4. Step 4: Simplify right side
    611,504.46x = 286,561,933,364.46
  5. Step 5: Solve for x
    x = 286,561,933,364.46/611,504.46
  6. Step 6: Final answer
    x = 468,617.90

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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.