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Finding the Fourth Proportional to 611,847.60, 844,360.40 and 339,940.32

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Solution

The fourth proportional to 611,847.60, 844,360.40 and 339,940.32 is: 469,123.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,847.60 : 844,360.40 = 339,940.32 : x
  2. Step 2: Convert to fraction form
    611,847.60/844,360.40 = 339,940.32/x
  3. Step 3: Cross multiply
    611,847.60x = 844,360.40 × 339,940.32
  4. Step 4: Simplify right side
    611,847.60x = 287,032,144,571.33
  5. Step 5: Solve for x
    x = 287,032,144,571.33/611,847.60
  6. Step 6: Final answer
    x = 469,123.59

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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.