Home / 621,084.09-931,822.98-221,716.02

Finding the Fourth Proportional to 621,084.09, 931,822.98 and 221,716.02

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Solution

The fourth proportional to 621,084.09, 931,822.98 and 221,716.02 is: 332,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,084.09 : 931,822.98 = 221,716.02 : x
  2. Step 2: Convert to fraction form
    621,084.09/931,822.98 = 221,716.02/x
  3. Step 3: Cross multiply
    621,084.09x = 931,822.98 × 221,716.02
  4. Step 4: Simplify right side
    621,084.09x = 206,600,082,470.14
  5. Step 5: Solve for x
    x = 206,600,082,470.14/621,084.09
  6. Step 6: Final answer
    x = 332,644.30

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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.