Home / 1,378,199.34-2,067,299.01-431,644.14

Finding the Fourth Proportional to 1,378,199.34, 2,067,299.01 and 431,644.14

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Solution

The fourth proportional to 1,378,199.34, 2,067,299.01 and 431,644.14 is: 647,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,199.34 : 2,067,299.01 = 431,644.14 : x
  2. Step 2: Convert to fraction form
    1,378,199.34/2,067,299.01 = 431,644.14/x
  3. Step 3: Cross multiply
    1,378,199.34x = 2,067,299.01 × 431,644.14
  4. Step 4: Simplify right side
    1,378,199.34x = 892,337,503,294.30
  5. Step 5: Solve for x
    x = 892,337,503,294.30/1,378,199.34
  6. Step 6: Final answer
    x = 647,466.21

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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.