Home / 812,352.59-1,121,081.61-449,776.46

Finding the Fourth Proportional to 812,352.59, 1,121,081.61 and 449,776.46

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Solution

The fourth proportional to 812,352.59, 1,121,081.61 and 449,776.46 is: 620,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,352.59 : 1,121,081.61 = 449,776.46 : x
  2. Step 2: Convert to fraction form
    812,352.59/1,121,081.61 = 449,776.46/x
  3. Step 3: Cross multiply
    812,352.59x = 1,121,081.61 × 449,776.46
  4. Step 4: Simplify right side
    812,352.59x = 504,236,122,406.27
  5. Step 5: Solve for x
    x = 504,236,122,406.27/812,352.59
  6. Step 6: Final answer
    x = 620,710.92

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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.