Home / 825,772.88-1,238,362.32-285,882.56

Finding the Fourth Proportional to 825,772.88, 1,238,362.32 and 285,882.56

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Solution

The fourth proportional to 825,772.88, 1,238,362.32 and 285,882.56 is: 428,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,772.88 : 1,238,362.32 = 285,882.56 : x
  2. Step 2: Convert to fraction form
    825,772.88/1,238,362.32 = 285,882.56/x
  3. Step 3: Cross multiply
    825,772.88x = 1,238,362.32 × 285,882.56
  4. Step 4: Simplify right side
    825,772.88x = 354,026,190,249.14
  5. Step 5: Solve for x
    x = 354,026,190,249.14/825,772.88
  6. Step 6: Final answer
    x = 428,721.02

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1.5x scale

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.