Home / 1,085,694.80-1,628,542.20-486,019.40

Finding the Fourth Proportional to 1,085,694.80, 1,628,542.20 and 486,019.40

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Solution

The fourth proportional to 1,085,694.80, 1,628,542.20 and 486,019.40 is: 729,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,694.80 : 1,628,542.20 = 486,019.40 : x
  2. Step 2: Convert to fraction form
    1,085,694.80/1,628,542.20 = 486,019.40/x
  3. Step 3: Cross multiply
    1,085,694.80x = 1,628,542.20 × 486,019.40
  4. Step 4: Simplify right side
    1,085,694.80x = 791,503,102,918.68
  5. Step 5: Solve for x
    x = 791,503,102,918.68/1,085,694.80
  6. Step 6: Final answer
    x = 729,029.10

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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.