Home / 486,137.80-729,984.30-329,062.60

Finding the Fourth Proportional to 486,137.80, 729,984.30 and 329,062.60

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Solution

The fourth proportional to 486,137.80, 729,984.30 and 329,062.60 is: 494,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,137.80 : 729,984.30 = 329,062.60 : x
  2. Step 2: Convert to fraction form
    486,137.80/729,984.30 = 329,062.60/x
  3. Step 3: Cross multiply
    486,137.80x = 729,984.30 × 329,062.60
  4. Step 4: Simplify right side
    486,137.80x = 240,210,531,717.18
  5. Step 5: Solve for x
    x = 240,210,531,717.18/486,137.80
  6. Step 6: Final answer
    x = 494,120.25

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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.