Home / 825,763.70-1,239,797.55-528,086.90

Finding the Fourth Proportional to 825,763.70, 1,239,797.55 and 528,086.90

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Solution

The fourth proportional to 825,763.70, 1,239,797.55 and 528,086.90 is: 792,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,763.70 : 1,239,797.55 = 528,086.90 : x
  2. Step 2: Convert to fraction form
    825,763.70/1,239,797.55 = 528,086.90/x
  3. Step 3: Cross multiply
    825,763.70x = 1,239,797.55 × 528,086.90
  4. Step 4: Simplify right side
    825,763.70x = 654,720,844,807.10
  5. Step 5: Solve for x
    x = 654,720,844,807.10/825,763.70
  6. Step 6: Final answer
    x = 792,867.07

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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.