Home / 646,644.20-892,438.61-356,284.96

Finding the Fourth Proportional to 646,644.20, 892,438.61 and 356,284.96

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Solution

The fourth proportional to 646,644.20, 892,438.61 and 356,284.96 is: 491,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,644.20 : 892,438.61 = 356,284.96 : x
  2. Step 2: Convert to fraction form
    646,644.20/892,438.61 = 356,284.96/x
  3. Step 3: Cross multiply
    646,644.20x = 892,438.61 × 356,284.96
  4. Step 4: Simplify right side
    646,644.20x = 317,962,450,453.78
  5. Step 5: Solve for x
    x = 317,962,450,453.78/646,644.20
  6. Step 6: Final answer
    x = 491,711.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.