Home / 812,114.74-1,120,704.75-449,530.84

Finding the Fourth Proportional to 812,114.74, 1,120,704.75 and 449,530.84

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Solution

The fourth proportional to 812,114.74, 1,120,704.75 and 449,530.84 is: 620,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,114.74 : 1,120,704.75 = 449,530.84 : x
  2. Step 2: Convert to fraction form
    812,114.74/1,120,704.75 = 449,530.84/x
  3. Step 3: Cross multiply
    812,114.74x = 1,120,704.75 × 449,530.84
  4. Step 4: Simplify right side
    812,114.74x = 503,791,347,659.49
  5. Step 5: Solve for x
    x = 503,791,347,659.49/812,114.74
  6. Step 6: Final answer
    x = 620,345.04

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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.