Home / 621,072.40-931,805.52-221,704.60

Finding the Fourth Proportional to 621,072.40, 931,805.52 and 221,704.60

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Solution

The fourth proportional to 621,072.40, 931,805.52 and 221,704.60 is: 332,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,072.40 : 931,805.52 = 221,704.60 : x
  2. Step 2: Convert to fraction form
    621,072.40/931,805.52 = 221,704.60/x
  3. Step 3: Cross multiply
    621,072.40x = 931,805.52 × 221,704.60
  4. Step 4: Simplify right side
    621,072.40x = 206,585,564,321.84
  5. Step 5: Solve for x
    x = 206,585,564,321.84/621,072.40
  6. Step 6: Final answer
    x = 332,627.19

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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.