Home / 1,388,134.80-2,082,202.20-441,601.20

Finding the Fourth Proportional to 1,388,134.80, 2,082,202.20 and 441,601.20

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Solution

The fourth proportional to 1,388,134.80, 2,082,202.20 and 441,601.20 is: 662,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,134.80 : 2,082,202.20 = 441,601.20 : x
  2. Step 2: Convert to fraction form
    1,388,134.80/2,082,202.20 = 441,601.20/x
  3. Step 3: Cross multiply
    1,388,134.80x = 2,082,202.20 × 441,601.20
  4. Step 4: Simplify right side
    1,388,134.80x = 919,502,990,162.64
  5. Step 5: Solve for x
    x = 919,502,990,162.64/1,388,134.80
  6. Step 6: Final answer
    x = 662,401.80

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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.