Home / 727,415.34-1,091,123.10-221,979

Finding the Fourth Proportional to 727,415.34, 1,091,123.10 and 221,979

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Solution

The fourth proportional to 727,415.34, 1,091,123.10 and 221,979 is: 332,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,415.34 : 1,091,123.10 = 221,979 : x
  2. Step 2: Convert to fraction form
    727,415.34/1,091,123.10 = 221,979/x
  3. Step 3: Cross multiply
    727,415.34x = 1,091,123.10 × 221,979
  4. Step 4: Simplify right side
    727,415.34x = 242,206,414,614.90
  5. Step 5: Solve for x
    x = 242,206,414,614.90/727,415.34
  6. Step 6: Final answer
    x = 332,968.53

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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.