Home / 828,155.87-1,241,348.04-378,202.49

Finding the Fourth Proportional to 828,155.87, 1,241,348.04 and 378,202.49

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Solution

The fourth proportional to 828,155.87, 1,241,348.04 and 378,202.49 is: 566,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,155.87 : 1,241,348.04 = 378,202.49 : x
  2. Step 2: Convert to fraction form
    828,155.87/1,241,348.04 = 378,202.49/x
  3. Step 3: Cross multiply
    828,155.87x = 1,241,348.04 × 378,202.49
  4. Step 4: Simplify right side
    828,155.87x = 469,480,919,684.62
  5. Step 5: Solve for x
    x = 469,480,919,684.62/828,155.87
  6. Step 6: Final answer
    x = 566,899.22

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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.