Home / 621,119.12-931,449.48-221,653.04

Finding the Fourth Proportional to 621,119.12, 931,449.48 and 221,653.04

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Solution

The fourth proportional to 621,119.12, 931,449.48 and 221,653.04 is: 332,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119.12 : 931,449.48 = 221,653.04 : x
  2. Step 2: Convert to fraction form
    621,119.12/931,449.48 = 221,653.04/x
  3. Step 3: Cross multiply
    621,119.12x = 931,449.48 × 221,653.04
  4. Step 4: Simplify right side
    621,119.12x = 206,458,608,848.42
  5. Step 5: Solve for x
    x = 206,458,608,848.42/621,119.12
  6. Step 6: Final answer
    x = 332,397.77

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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.