Home / 1,308,856.46-1,806,198.10-728,076.74

Finding the Fourth Proportional to 1,308,856.46, 1,806,198.10 and 728,076.74

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Solution

The fourth proportional to 1,308,856.46, 1,806,198.10 and 728,076.74 is: 1,004,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,856.46 : 1,806,198.10 = 728,076.74 : x
  2. Step 2: Convert to fraction form
    1,308,856.46/1,806,198.10 = 728,076.74/x
  3. Step 3: Cross multiply
    1,308,856.46x = 1,806,198.10 × 728,076.74
  4. Step 4: Simplify right side
    1,308,856.46x = 1,315,050,813,591.01
  5. Step 5: Solve for x
    x = 1,315,050,813,591.01/1,308,856.46
  6. Step 6: Final answer
    x = 1,004,732.65

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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.