Home / 812,180.46-1,120,817.90-449,610.37

Finding the Fourth Proportional to 812,180.46, 1,120,817.90 and 449,610.37

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Solution

The fourth proportional to 812,180.46, 1,120,817.90 and 449,610.37 is: 620,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,180.46 : 1,120,817.90 = 449,610.37 : x
  2. Step 2: Convert to fraction form
    812,180.46/1,120,817.90 = 449,610.37/x
  3. Step 3: Cross multiply
    812,180.46x = 1,120,817.90 × 449,610.37
  4. Step 4: Simplify right side
    812,180.46x = 503,931,351,560.63
  5. Step 5: Solve for x
    x = 503,931,351,560.63/812,180.46
  6. Step 6: Final answer
    x = 620,467.22

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1.5x scale

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.