Home / 1,395,940.20-1,925,906.76-912,788.16

Finding the Fourth Proportional to 1,395,940.20, 1,925,906.76 and 912,788.16

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Solution

The fourth proportional to 1,395,940.20, 1,925,906.76 and 912,788.16 is: 1,259,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,940.20 : 1,925,906.76 = 912,788.16 : x
  2. Step 2: Convert to fraction form
    1,395,940.20/1,925,906.76 = 912,788.16/x
  3. Step 3: Cross multiply
    1,395,940.20x = 1,925,906.76 × 912,788.16
  4. Step 4: Simplify right side
    1,395,940.20x = 1,757,944,887,791.96
  5. Step 5: Solve for x
    x = 1,757,944,887,791.96/1,395,940.20
  6. Step 6: Final answer
    x = 1,259,326.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.