Home / 643,467.26-887,984.46-353,080.73

Finding the Fourth Proportional to 643,467.26, 887,984.46 and 353,080.73

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Solution

The fourth proportional to 643,467.26, 887,984.46 and 353,080.73 is: 487,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,467.26 : 887,984.46 = 353,080.73 : x
  2. Step 2: Convert to fraction form
    643,467.26/887,984.46 = 353,080.73/x
  3. Step 3: Cross multiply
    643,467.26x = 887,984.46 × 353,080.73
  4. Step 4: Simplify right side
    643,467.26x = 313,530,201,365.46
  5. Step 5: Solve for x
    x = 313,530,201,365.46/643,467.26
  6. Step 6: Final answer
    x = 487,251.21

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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.