Home / 753,896.92-1,040,385.78-409,732.84

Finding the Fourth Proportional to 753,896.92, 1,040,385.78 and 409,732.84

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Solution

The fourth proportional to 753,896.92, 1,040,385.78 and 409,732.84 is: 565,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,896.92 : 1,040,385.78 = 409,732.84 : x
  2. Step 2: Convert to fraction form
    753,896.92/1,040,385.78 = 409,732.84/x
  3. Step 3: Cross multiply
    753,896.92x = 1,040,385.78 × 409,732.84
  4. Step 4: Simplify right side
    753,896.92x = 426,280,220,335.02
  5. Step 5: Solve for x
    x = 426,280,220,335.02/753,896.92
  6. Step 6: Final answer
    x = 565,435.68

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1.5x scale

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.