Home / 721,231.05-1,080,890.94-383,544.57

Finding the Fourth Proportional to 721,231.05, 1,080,890.94 and 383,544.57

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Solution

The fourth proportional to 721,231.05, 1,080,890.94 and 383,544.57 is: 574,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,231.05 : 1,080,890.94 = 383,544.57 : x
  2. Step 2: Convert to fraction form
    721,231.05/1,080,890.94 = 383,544.57/x
  3. Step 3: Cross multiply
    721,231.05x = 1,080,890.94 × 383,544.57
  4. Step 4: Simplify right side
    721,231.05x = 414,569,850,799.20
  5. Step 5: Solve for x
    x = 414,569,850,799.20/721,231.05
  6. Step 6: Final answer
    x = 574,808.66

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1.5x scale

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.