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Finding the Fourth Proportional to 442,817.70, 664,226.55 and 376,551.60

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Solution

The fourth proportional to 442,817.70, 664,226.55 and 376,551.60 is: 564,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,817.70 : 664,226.55 = 376,551.60 : x
  2. Step 2: Convert to fraction form
    442,817.70/664,226.55 = 376,551.60/x
  3. Step 3: Cross multiply
    442,817.70x = 664,226.55 × 376,551.60
  4. Step 4: Simplify right side
    442,817.70x = 250,115,570,164.98
  5. Step 5: Solve for x
    x = 250,115,570,164.98/442,817.70
  6. Step 6: Final answer
    x = 564,827.40

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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.