Home / 413,540.13-619,758.14-221,020.04

Finding the Fourth Proportional to 413,540.13, 619,758.14 and 221,020.04

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Solution

The fourth proportional to 413,540.13, 619,758.14 and 221,020.04 is: 331,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,540.13 : 619,758.14 = 221,020.04 : x
  2. Step 2: Convert to fraction form
    413,540.13/619,758.14 = 221,020.04/x
  3. Step 3: Cross multiply
    413,540.13x = 619,758.14 × 221,020.04
  4. Step 4: Simplify right side
    413,540.13x = 136,978,969,337.42
  5. Step 5: Solve for x
    x = 136,978,969,337.42/413,540.13
  6. Step 6: Final answer
    x = 331,235.01

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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.