Home / 780,906.32-1,171,636.91-348,584.60

Finding the Fourth Proportional to 780,906.32, 1,171,636.91 and 348,584.60

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Solution

The fourth proportional to 780,906.32, 1,171,636.91 and 348,584.60 is: 523,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,906.32 : 1,171,636.91 = 348,584.60 : x
  2. Step 2: Convert to fraction form
    780,906.32/1,171,636.91 = 348,584.60/x
  3. Step 3: Cross multiply
    780,906.32x = 1,171,636.91 × 348,584.60
  4. Step 4: Simplify right side
    780,906.32x = 408,414,582,479.54
  5. Step 5: Solve for x
    x = 408,414,582,479.54/780,906.32
  6. Step 6: Final answer
    x = 523,000.74

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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.