Home / 1,405,105.45-2,107,655.05-1,085,721.73

Finding the Fourth Proportional to 1,405,105.45, 2,107,655.05 and 1,085,721.73

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Solution

The fourth proportional to 1,405,105.45, 2,107,655.05 and 1,085,721.73 is: 1,628,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,105.45 : 2,107,655.05 = 1,085,721.73 : x
  2. Step 2: Convert to fraction form
    1,405,105.45/2,107,655.05 = 1,085,721.73/x
  3. Step 3: Cross multiply
    1,405,105.45x = 2,107,655.05 × 1,085,721.73
  4. Step 4: Simplify right side
    1,405,105.45x = 2,288,326,887,129.24
  5. Step 5: Solve for x
    x = 2,288,326,887,129.24/1,405,105.45
  6. Step 6: Final answer
    x = 1,628,580.18

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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.