Home / 1,116,961.79-1,541,942.66-687,609.95

Finding the Fourth Proportional to 1,116,961.79, 1,541,942.66 and 687,609.95

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Solution

The fourth proportional to 1,116,961.79, 1,541,942.66 and 687,609.95 is: 949,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,961.79 : 1,541,942.66 = 687,609.95 : x
  2. Step 2: Convert to fraction form
    1,116,961.79/1,541,942.66 = 687,609.95/x
  3. Step 3: Cross multiply
    1,116,961.79x = 1,541,942.66 × 687,609.95
  4. Step 4: Simplify right side
    1,116,961.79x = 1,060,255,115,762.27
  5. Step 5: Solve for x
    x = 1,060,255,115,762.27/1,116,961.79
  6. Step 6: Final answer
    x = 949,231.32

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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.