Home / 727,371.72-1,091,032.08-221,912.28

Finding the Fourth Proportional to 727,371.72, 1,091,032.08 and 221,912.28

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Solution

The fourth proportional to 727,371.72, 1,091,032.08 and 221,912.28 is: 332,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,371.72 : 1,091,032.08 = 221,912.28 : x
  2. Step 2: Convert to fraction form
    727,371.72/1,091,032.08 = 221,912.28/x
  3. Step 3: Cross multiply
    727,371.72x = 1,091,032.08 × 221,912.28
  4. Step 4: Simplify right side
    727,371.72x = 242,113,416,425.94
  5. Step 5: Solve for x
    x = 242,113,416,425.94/727,371.72
  6. Step 6: Final answer
    x = 332,860.64

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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.