Home / 726,797.31-1,088,996.25-422,336.76

Finding the Fourth Proportional to 726,797.31, 1,088,996.25 and 422,336.76

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Solution

The fourth proportional to 726,797.31, 1,088,996.25 and 422,336.76 is: 632,807.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,797.31 : 1,088,996.25 = 422,336.76 : x
  2. Step 2: Convert to fraction form
    726,797.31/1,088,996.25 = 422,336.76/x
  3. Step 3: Cross multiply
    726,797.31x = 1,088,996.25 × 422,336.76
  4. Step 4: Simplify right side
    726,797.31x = 459,923,147,877.15
  5. Step 5: Solve for x
    x = 459,923,147,877.15/726,797.31
  6. Step 6: Final answer
    x = 632,807.99

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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.