Home / 780,059.25-1,076,481.77-422,363.25

Finding the Fourth Proportional to 780,059.25, 1,076,481.77 and 422,363.25

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Solution

The fourth proportional to 780,059.25, 1,076,481.77 and 422,363.25 is: 582,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,059.25 : 1,076,481.77 = 422,363.25 : x
  2. Step 2: Convert to fraction form
    780,059.25/1,076,481.77 = 422,363.25/x
  3. Step 3: Cross multiply
    780,059.25x = 1,076,481.77 × 422,363.25
  4. Step 4: Simplify right side
    780,059.25x = 454,666,336,831.14
  5. Step 5: Solve for x
    x = 454,666,336,831.14/780,059.25
  6. Step 6: Final answer
    x = 582,861.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.