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Finding the Fourth Proportional to 519,810.40, 779,715.60 and 204,162.40

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Solution

The fourth proportional to 519,810.40, 779,715.60 and 204,162.40 is: 306,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,810.40 : 779,715.60 = 204,162.40 : x
  2. Step 2: Convert to fraction form
    519,810.40/779,715.60 = 204,162.40/x
  3. Step 3: Cross multiply
    519,810.40x = 779,715.60 × 204,162.40
  4. Step 4: Simplify right side
    519,810.40x = 159,188,608,213.44
  5. Step 5: Solve for x
    x = 159,188,608,213.44/519,810.40
  6. Step 6: Final answer
    x = 306,243.60

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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.