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Finding the Fourth Proportional to 492,757.60, 739,136.40 and 386,469.40

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Solution

The fourth proportional to 492,757.60, 739,136.40 and 386,469.40 is: 579,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,757.60 : 739,136.40 = 386,469.40 : x
  2. Step 2: Convert to fraction form
    492,757.60/739,136.40 = 386,469.40/x
  3. Step 3: Cross multiply
    492,757.60x = 739,136.40 × 386,469.40
  4. Step 4: Simplify right side
    492,757.60x = 285,653,601,026.16
  5. Step 5: Solve for x
    x = 285,653,601,026.16/492,757.60
  6. Step 6: Final answer
    x = 579,704.10

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Similar ratio
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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.