Home / 1,203,685.92-1,661,137.48-687,524.72

Finding the Fourth Proportional to 1,203,685.92, 1,661,137.48 and 687,524.72

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Solution

The fourth proportional to 1,203,685.92, 1,661,137.48 and 687,524.72 is: 948,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,685.92 : 1,661,137.48 = 687,524.72 : x
  2. Step 2: Convert to fraction form
    1,203,685.92/1,661,137.48 = 687,524.72/x
  3. Step 3: Cross multiply
    1,203,685.92x = 1,661,137.48 × 687,524.72
  4. Step 4: Simplify right side
    1,203,685.92x = 1,142,073,080,818.51
  5. Step 5: Solve for x
    x = 1,142,073,080,818.51/1,203,685.92
  6. Step 6: Final answer
    x = 948,813.19

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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.