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Finding the Fourth Proportional to 1,266,709.82, 1,899,266.46 and 1,074,651.35

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Solution

The fourth proportional to 1,266,709.82, 1,899,266.46 and 1,074,651.35 is: 1,611,299.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,709.82 : 1,899,266.46 = 1,074,651.35 : x
  2. Step 2: Convert to fraction form
    1,266,709.82/1,899,266.46 = 1,074,651.35/x
  3. Step 3: Cross multiply
    1,266,709.82x = 1,899,266.46 × 1,074,651.35
  4. Step 4: Simplify right side
    1,266,709.82x = 2,041,049,255,752.39
  5. Step 5: Solve for x
    x = 2,041,049,255,752.39/1,266,709.82
  6. Step 6: Final answer
    x = 1,611,299.79

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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.