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Finding the Fourth Proportional to 2,895,906.40, 4,344,896.40 and 1,213,525.60

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Solution

The fourth proportional to 2,895,906.40, 4,344,896.40 and 1,213,525.60 is: 1,820,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895,906.40 : 4,344,896.40 = 1,213,525.60 : x
  2. Step 2: Convert to fraction form
    2,895,906.40/4,344,896.40 = 1,213,525.60/x
  3. Step 3: Cross multiply
    2,895,906.40x = 4,344,896.40 × 1,213,525.60
  4. Step 4: Simplify right side
    2,895,906.40x = 5,272,643,010,747.84
  5. Step 5: Solve for x
    x = 5,272,643,010,747.84/2,895,906.40
  6. Step 6: Final answer
    x = 1,820,722.87

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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.