Home / 957,972.21-1,321,991.97-522,388.50

Finding the Fourth Proportional to 957,972.21, 1,321,991.97 and 522,388.50

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Solution

The fourth proportional to 957,972.21, 1,321,991.97 and 522,388.50 is: 720,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,972.21 : 1,321,991.97 = 522,388.50 : x
  2. Step 2: Convert to fraction form
    957,972.21/1,321,991.97 = 522,388.50/x
  3. Step 3: Cross multiply
    957,972.21x = 1,321,991.97 × 522,388.50
  4. Step 4: Simplify right side
    957,972.21x = 690,593,402,220.35
  5. Step 5: Solve for x
    x = 690,593,402,220.35/957,972.21
  6. Step 6: Final answer
    x = 720,890.85

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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.