Home / 1,817,709.20-2,726,538.20-820,435.60

Finding the Fourth Proportional to 1,817,709.20, 2,726,538.20 and 820,435.60

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Solution

The fourth proportional to 1,817,709.20, 2,726,538.20 and 820,435.60 is: 1,230,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817,709.20 : 2,726,538.20 = 820,435.60 : x
  2. Step 2: Convert to fraction form
    1,817,709.20/2,726,538.20 = 820,435.60/x
  3. Step 3: Cross multiply
    1,817,709.20x = 2,726,538.20 × 820,435.60
  4. Step 4: Simplify right side
    1,817,709.20x = 2,236,949,004,039.92
  5. Step 5: Solve for x
    x = 2,236,949,004,039.92/1,817,709.20
  6. Step 6: Final answer
    x = 1,230,641.85

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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.