Home / 1,210,090.20-1,815,135.30-323,626.20

Finding the Fourth Proportional to 1,210,090.20, 1,815,135.30 and 323,626.20

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Solution

The fourth proportional to 1,210,090.20, 1,815,135.30 and 323,626.20 is: 485,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,090.20 : 1,815,135.30 = 323,626.20 : x
  2. Step 2: Convert to fraction form
    1,210,090.20/1,815,135.30 = 323,626.20/x
  3. Step 3: Cross multiply
    1,210,090.20x = 1,815,135.30 × 323,626.20
  4. Step 4: Simplify right side
    1,210,090.20x = 587,425,339,624.86
  5. Step 5: Solve for x
    x = 587,425,339,624.86/1,210,090.20
  6. Step 6: Final answer
    x = 485,439.30

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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.