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Finding the Fourth Proportional to 413,858.60, 620,787.90 and 164,540.60

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Solution

The fourth proportional to 413,858.60, 620,787.90 and 164,540.60 is: 246,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,858.60 : 620,787.90 = 164,540.60 : x
  2. Step 2: Convert to fraction form
    413,858.60/620,787.90 = 164,540.60/x
  3. Step 3: Cross multiply
    413,858.60x = 620,787.90 × 164,540.60
  4. Step 4: Simplify right side
    413,858.60x = 102,144,813,538.74
  5. Step 5: Solve for x
    x = 102,144,813,538.74/413,858.60
  6. Step 6: Final answer
    x = 246,810.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.