Home / 1,515,077.60-2,275,240.80-806,489.60

Finding the Fourth Proportional to 1,515,077.60, 2,275,240.80 and 806,489.60

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Solution

The fourth proportional to 1,515,077.60, 2,275,240.80 and 806,489.60 is: 1,211,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,077.60 : 2,275,240.80 = 806,489.60 : x
  2. Step 2: Convert to fraction form
    1,515,077.60/2,275,240.80 = 806,489.60/x
  3. Step 3: Cross multiply
    1,515,077.60x = 2,275,240.80 × 806,489.60
  4. Step 4: Simplify right side
    1,515,077.60x = 1,834,958,042,695.68
  5. Step 5: Solve for x
    x = 1,834,958,042,695.68/1,515,077.60
  6. Step 6: Final answer
    x = 1,211,131.39

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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.