Home / 498,619.80-746,876.70-330,220.80

Finding the Fourth Proportional to 498,619.80, 746,876.70 and 330,220.80

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Solution

The fourth proportional to 498,619.80, 746,876.70 and 330,220.80 is: 494,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,619.80 : 746,876.70 = 330,220.80 : x
  2. Step 2: Convert to fraction form
    498,619.80/746,876.70 = 330,220.80/x
  3. Step 3: Cross multiply
    498,619.80x = 746,876.70 × 330,220.80
  4. Step 4: Simplify right side
    498,619.80x = 246,634,221,375.36
  5. Step 5: Solve for x
    x = 246,634,221,375.36/498,619.80
  6. Step 6: Final answer
    x = 494,633.83

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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.