Home / 3,138,228.30-4,707,342.45-1,543,905.30

Finding the Fourth Proportional to 3,138,228.30, 4,707,342.45 and 1,543,905.30

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Solution

The fourth proportional to 3,138,228.30, 4,707,342.45 and 1,543,905.30 is: 2,315,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,228.30 : 4,707,342.45 = 1,543,905.30 : x
  2. Step 2: Convert to fraction form
    3,138,228.30/4,707,342.45 = 1,543,905.30/x
  3. Step 3: Cross multiply
    3,138,228.30x = 4,707,342.45 × 1,543,905.30
  4. Step 4: Simplify right side
    3,138,228.30x = 7,267,690,957,469.99
  5. Step 5: Solve for x
    x = 7,267,690,957,469.99/3,138,228.30
  6. Step 6: Final answer
    x = 2,315,857.95

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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.