Home / 810,179.80-1,215,269.70-336,815.80

Finding the Fourth Proportional to 810,179.80, 1,215,269.70 and 336,815.80

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Solution

The fourth proportional to 810,179.80, 1,215,269.70 and 336,815.80 is: 505,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,179.80 : 1,215,269.70 = 336,815.80 : x
  2. Step 2: Convert to fraction form
    810,179.80/1,215,269.70 = 336,815.80/x
  3. Step 3: Cross multiply
    810,179.80x = 1,215,269.70 × 336,815.80
  4. Step 4: Simplify right side
    810,179.80x = 409,322,036,221.26
  5. Step 5: Solve for x
    x = 409,322,036,221.26/810,179.80
  6. Step 6: Final answer
    x = 505,223.70

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Similar ratio
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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.