Home / 1,028,612.97-1,419,496.34-620,635.86

Finding the Fourth Proportional to 1,028,612.97, 1,419,496.34 and 620,635.86

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Solution

The fourth proportional to 1,028,612.97, 1,419,496.34 and 620,635.86 is: 856,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,612.97 : 1,419,496.34 = 620,635.86 : x
  2. Step 2: Convert to fraction form
    1,028,612.97/1,419,496.34 = 620,635.86/x
  3. Step 3: Cross multiply
    1,028,612.97x = 1,419,496.34 × 620,635.86
  4. Step 4: Simplify right side
    1,028,612.97x = 880,990,328,639.57
  5. Step 5: Solve for x
    x = 880,990,328,639.57/1,028,612.97
  6. Step 6: Final answer
    x = 856,483.78

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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.