Home / 521,012.20-780,935.10-296,480.20

Finding the Fourth Proportional to 521,012.20, 780,935.10 and 296,480.20

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Solution

The fourth proportional to 521,012.20, 780,935.10 and 296,480.20 is: 444,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,012.20 : 780,935.10 = 296,480.20 : x
  2. Step 2: Convert to fraction form
    521,012.20/780,935.10 = 296,480.20/x
  3. Step 3: Cross multiply
    521,012.20x = 780,935.10 × 296,480.20
  4. Step 4: Simplify right side
    521,012.20x = 231,531,794,635.02
  5. Step 5: Solve for x
    x = 231,531,794,635.02/521,012.20
  6. Step 6: Final answer
    x = 444,388.43

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1.5x scale

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.