Home / 1,086,273.40-1,629,410.10-455,121.40

Finding the Fourth Proportional to 1,086,273.40, 1,629,410.10 and 455,121.40

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Solution

The fourth proportional to 1,086,273.40, 1,629,410.10 and 455,121.40 is: 682,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,273.40 : 1,629,410.10 = 455,121.40 : x
  2. Step 2: Convert to fraction form
    1,086,273.40/1,629,410.10 = 455,121.40/x
  3. Step 3: Cross multiply
    1,086,273.40x = 1,629,410.10 × 455,121.40
  4. Step 4: Simplify right side
    1,086,273.40x = 741,579,405,886.14
  5. Step 5: Solve for x
    x = 741,579,405,886.14/1,086,273.40
  6. Step 6: Final answer
    x = 682,682.10

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Double scale
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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.