Home / 1,122,759.60-1,684,139.40-324,067.20

Finding the Fourth Proportional to 1,122,759.60, 1,684,139.40 and 324,067.20

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Solution

The fourth proportional to 1,122,759.60, 1,684,139.40 and 324,067.20 is: 486,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,759.60 : 1,684,139.40 = 324,067.20 : x
  2. Step 2: Convert to fraction form
    1,122,759.60/1,684,139.40 = 324,067.20/x
  3. Step 3: Cross multiply
    1,122,759.60x = 1,684,139.40 × 324,067.20
  4. Step 4: Simplify right side
    1,122,759.60x = 545,774,339,767.68
  5. Step 5: Solve for x
    x = 545,774,339,767.68/1,122,759.60
  6. Step 6: Final answer
    x = 486,100.80

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Half scale
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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.