Home / 1,815,512.80-2,723,269.20-485,816.80

Finding the Fourth Proportional to 1,815,512.80, 2,723,269.20 and 485,816.80

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Solution

The fourth proportional to 1,815,512.80, 2,723,269.20 and 485,816.80 is: 728,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,512.80 : 2,723,269.20 = 485,816.80 : x
  2. Step 2: Convert to fraction form
    1,815,512.80/2,723,269.20 = 485,816.80/x
  3. Step 3: Cross multiply
    1,815,512.80x = 2,723,269.20 × 485,816.80
  4. Step 4: Simplify right side
    1,815,512.80x = 1,323,009,928,282.56
  5. Step 5: Solve for x
    x = 1,323,009,928,282.56/1,815,512.80
  6. Step 6: Final answer
    x = 728,725.20

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Double scale
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Similar ratio
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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.