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Finding the Fourth Proportional to 682,396.56, 941,880.24 and 395,880.48

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Solution

The fourth proportional to 682,396.56, 941,880.24 and 395,880.48 is: 546,415.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,396.56 : 941,880.24 = 395,880.48 : x
  2. Step 2: Convert to fraction form
    682,396.56/941,880.24 = 395,880.48/x
  3. Step 3: Cross multiply
    682,396.56x = 941,880.24 × 395,880.48
  4. Step 4: Simplify right side
    682,396.56x = 372,872,001,513.72
  5. Step 5: Solve for x
    x = 372,872,001,513.72/682,396.56
  6. Step 6: Final answer
    x = 546,415.42

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1.5x scale

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.