Home / 1,116,961.55-1,541,942.31-687,609.71

Finding the Fourth Proportional to 1,116,961.55, 1,541,942.31 and 687,609.71

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Solution

The fourth proportional to 1,116,961.55, 1,541,942.31 and 687,609.71 is: 949,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,961.55 : 1,541,942.31 = 687,609.71 : x
  2. Step 2: Convert to fraction form
    1,116,961.55/1,541,942.31 = 687,609.71/x
  3. Step 3: Cross multiply
    1,116,961.55x = 1,541,942.31 × 687,609.71
  4. Step 4: Simplify right side
    1,116,961.55x = 1,060,254,493,468.07
  5. Step 5: Solve for x
    x = 1,060,254,493,468.07/1,116,961.55
  6. Step 6: Final answer
    x = 949,230.97

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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.