Home / 3,217,215.30-4,825,820.20-821,059.74

Finding the Fourth Proportional to 3,217,215.30, 4,825,820.20 and 821,059.74

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Solution

The fourth proportional to 3,217,215.30, 4,825,820.20 and 821,059.74 is: 1,231,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,215.30 : 4,825,820.20 = 821,059.74 : x
  2. Step 2: Convert to fraction form
    3,217,215.30/4,825,820.20 = 821,059.74/x
  3. Step 3: Cross multiply
    3,217,215.30x = 4,825,820.20 × 821,059.74
  4. Step 4: Simplify right side
    3,217,215.30x = 3,962,286,678,698.75
  5. Step 5: Solve for x
    x = 3,962,286,678,698.75/3,217,215.30
  6. Step 6: Final answer
    x = 1,231,588.91

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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.