Home / 892,718.15-1,231,651.37-505,480.64

Finding the Fourth Proportional to 892,718.15, 1,231,651.37 and 505,480.64

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Solution

The fourth proportional to 892,718.15, 1,231,651.37 and 505,480.64 is: 697,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,718.15 : 1,231,651.37 = 505,480.64 : x
  2. Step 2: Convert to fraction form
    892,718.15/1,231,651.37 = 505,480.64/x
  3. Step 3: Cross multiply
    892,718.15x = 1,231,651.37 × 505,480.64
  4. Step 4: Simplify right side
    892,718.15x = 622,575,917,869.92
  5. Step 5: Solve for x
    x = 622,575,917,869.92/892,718.15
  6. Step 6: Final answer
    x = 697,393.60

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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.