Home / 775,154.72-1,162,732.62-214,189.76

Finding the Fourth Proportional to 775,154.72, 1,162,732.62 and 214,189.76

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Solution

The fourth proportional to 775,154.72, 1,162,732.62 and 214,189.76 is: 321,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,154.72 : 1,162,732.62 = 214,189.76 : x
  2. Step 2: Convert to fraction form
    775,154.72/1,162,732.62 = 214,189.76/x
  3. Step 3: Cross multiply
    775,154.72x = 1,162,732.62 × 214,189.76
  4. Step 4: Simplify right side
    775,154.72x = 249,045,420,821.97
  5. Step 5: Solve for x
    x = 249,045,420,821.97/775,154.72
  6. Step 6: Final answer
    x = 321,284.79

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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.