Home / 809,579.20-1,214,368.80-336,020.80

Finding the Fourth Proportional to 809,579.20, 1,214,368.80 and 336,020.80

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Solution

The fourth proportional to 809,579.20, 1,214,368.80 and 336,020.80 is: 504,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,579.20 : 1,214,368.80 = 336,020.80 : x
  2. Step 2: Convert to fraction form
    809,579.20/1,214,368.80 = 336,020.80/x
  3. Step 3: Cross multiply
    809,579.20x = 1,214,368.80 × 336,020.80
  4. Step 4: Simplify right side
    809,579.20x = 408,053,175,671.04
  5. Step 5: Solve for x
    x = 408,053,175,671.04/809,579.20
  6. Step 6: Final answer
    x = 504,031.20

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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.