Home / 1,116,531.76-1,540,960.86-1,086,133.72

Finding the Fourth Proportional to 1,116,531.76, 1,540,960.86 and 1,086,133.72

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Solution

The fourth proportional to 1,116,531.76, 1,540,960.86 and 1,086,133.72 is: 1,499,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,531.76 : 1,540,960.86 = 1,086,133.72 : x
  2. Step 2: Convert to fraction form
    1,116,531.76/1,540,960.86 = 1,086,133.72/x
  3. Step 3: Cross multiply
    1,116,531.76x = 1,540,960.86 × 1,086,133.72
  4. Step 4: Simplify right side
    1,116,531.76x = 1,673,689,551,246.20
  5. Step 5: Solve for x
    x = 1,673,689,551,246.20/1,116,531.76
  6. Step 6: Final answer
    x = 1,499,007.56

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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.