Home / 388,946.20-582,497.70-263,608.60

Finding the Fourth Proportional to 388,946.20, 582,497.70 and 263,608.60

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Solution

The fourth proportional to 388,946.20, 582,497.70 and 263,608.60 is: 394,788.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,946.20 : 582,497.70 = 263,608.60 : x
  2. Step 2: Convert to fraction form
    388,946.20/582,497.70 = 263,608.60/x
  3. Step 3: Cross multiply
    388,946.20x = 582,497.70 × 263,608.60
  4. Step 4: Simplify right side
    388,946.20x = 153,551,403,200.22
  5. Step 5: Solve for x
    x = 153,551,403,200.22/388,946.20
  6. Step 6: Final answer
    x = 394,788.28

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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.