Home / 1,115,336.82-1,539,137.78-625,273.86

Finding the Fourth Proportional to 1,115,336.82, 1,539,137.78 and 625,273.86

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Solution

The fourth proportional to 1,115,336.82, 1,539,137.78 and 625,273.86 is: 862,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,336.82 : 1,539,137.78 = 625,273.86 : x
  2. Step 2: Convert to fraction form
    1,115,336.82/1,539,137.78 = 625,273.86/x
  3. Step 3: Cross multiply
    1,115,336.82x = 1,539,137.78 × 625,273.86
  4. Step 4: Simplify right side
    1,115,336.82x = 962,382,620,772.43
  5. Step 5: Solve for x
    x = 962,382,620,772.43/1,115,336.82
  6. Step 6: Final answer
    x = 862,862.77

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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.