Home / 2,190,612.20-3,287,155.44-1,179,712.76

Finding the Fourth Proportional to 2,190,612.20, 3,287,155.44 and 1,179,712.76

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Solution

The fourth proportional to 2,190,612.20, 3,287,155.44 and 1,179,712.76 is: 1,770,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,612.20 : 3,287,155.44 = 1,179,712.76 : x
  2. Step 2: Convert to fraction form
    2,190,612.20/3,287,155.44 = 1,179,712.76/x
  3. Step 3: Cross multiply
    2,190,612.20x = 3,287,155.44 × 1,179,712.76
  4. Step 4: Simplify right side
    2,190,612.20x = 3,877,899,216,671.41
  5. Step 5: Solve for x
    x = 3,877,899,216,671.41/2,190,612.20
  6. Step 6: Final answer
    x = 1,770,235.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.