Home / 720,146.56-1,080,336.96-221,511.04

Finding the Fourth Proportional to 720,146.56, 1,080,336.96 and 221,511.04

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Solution

The fourth proportional to 720,146.56, 1,080,336.96 and 221,511.04 is: 332,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,146.56 : 1,080,336.96 = 221,511.04 : x
  2. Step 2: Convert to fraction form
    720,146.56/1,080,336.96 = 221,511.04/x
  3. Step 3: Cross multiply
    720,146.56x = 1,080,336.96 × 221,511.04
  4. Step 4: Simplify right side
    720,146.56x = 239,306,563,560.04
  5. Step 5: Solve for x
    x = 239,306,563,560.04/720,146.56
  6. Step 6: Final answer
    x = 332,302.59

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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.