Home / 1,231,650.09-1,699,661.07-687,795.44

Finding the Fourth Proportional to 1,231,650.09, 1,699,661.07 and 687,795.44

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Solution

The fourth proportional to 1,231,650.09, 1,699,661.07 and 687,795.44 is: 949,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,650.09 : 1,699,661.07 = 687,795.44 : x
  2. Step 2: Convert to fraction form
    1,231,650.09/1,699,661.07 = 687,795.44/x
  3. Step 3: Cross multiply
    1,231,650.09x = 1,699,661.07 × 687,795.44
  4. Step 4: Simplify right side
    1,231,650.09x = 1,169,019,124,993.22
  5. Step 5: Solve for x
    x = 1,169,019,124,993.22/1,231,650.09
  6. Step 6: Final answer
    x = 949,148.74

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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.