Home / 1,336,709.70-2,005,064.55-1,242,231.30

Finding the Fourth Proportional to 1,336,709.70, 2,005,064.55 and 1,242,231.30

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Solution

The fourth proportional to 1,336,709.70, 2,005,064.55 and 1,242,231.30 is: 1,863,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,709.70 : 2,005,064.55 = 1,242,231.30 : x
  2. Step 2: Convert to fraction form
    1,336,709.70/2,005,064.55 = 1,242,231.30/x
  3. Step 3: Cross multiply
    1,336,709.70x = 2,005,064.55 × 1,242,231.30
  4. Step 4: Simplify right side
    1,336,709.70x = 2,490,753,942,530.42
  5. Step 5: Solve for x
    x = 2,490,753,942,530.42/1,336,709.70
  6. Step 6: Final answer
    x = 1,863,346.95

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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.