Home / 1,280,767.97-1,767,500.45-699,978.36

Finding the Fourth Proportional to 1,280,767.97, 1,767,500.45 and 699,978.36

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Solution

The fourth proportional to 1,280,767.97, 1,767,500.45 and 699,978.36 is: 965,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,767.97 : 1,767,500.45 = 699,978.36 : x
  2. Step 2: Convert to fraction form
    1,280,767.97/1,767,500.45 = 699,978.36/x
  3. Step 3: Cross multiply
    1,280,767.97x = 1,767,500.45 × 699,978.36
  4. Step 4: Simplify right side
    1,280,767.97x = 1,237,212,062,790.37
  5. Step 5: Solve for x
    x = 1,237,212,062,790.37/1,280,767.97
  6. Step 6: Final answer
    x = 965,992.36

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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.