Home / 682,418.64-941,433.20-395,772.72

Finding the Fourth Proportional to 682,418.64, 941,433.20 and 395,772.72

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Solution

The fourth proportional to 682,418.64, 941,433.20 and 395,772.72 is: 545,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,418.64 : 941,433.20 = 395,772.72 : x
  2. Step 2: Convert to fraction form
    682,418.64/941,433.20 = 395,772.72/x
  3. Step 3: Cross multiply
    682,418.64x = 941,433.20 × 395,772.72
  4. Step 4: Simplify right side
    682,418.64x = 372,593,578,262.30
  5. Step 5: Solve for x
    x = 372,593,578,262.30/682,418.64
  6. Step 6: Final answer
    x = 545,989.74

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Double scale
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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.