Home / 812,482.52-1,121,212.08-449,898.59

Finding the Fourth Proportional to 812,482.52, 1,121,212.08 and 449,898.59

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Solution

The fourth proportional to 812,482.52, 1,121,212.08 and 449,898.59 is: 620,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,482.52 : 1,121,212.08 = 449,898.59 : x
  2. Step 2: Convert to fraction form
    812,482.52/1,121,212.08 = 449,898.59/x
  3. Step 3: Cross multiply
    812,482.52x = 1,121,212.08 × 449,898.59
  4. Step 4: Simplify right side
    812,482.52x = 504,431,735,425.62
  5. Step 5: Solve for x
    x = 504,431,735,425.62/812,482.52
  6. Step 6: Final answer
    x = 620,852.42

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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.