Home / 812,446.44-1,121,162.40-449,862.50

Finding the Fourth Proportional to 812,446.44, 1,121,162.40 and 449,862.50

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Solution

The fourth proportional to 812,446.44, 1,121,162.40 and 449,862.50 is: 620,802.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,446.44 : 1,121,162.40 = 449,862.50 : x
  2. Step 2: Convert to fraction form
    812,446.44/1,121,162.40 = 449,862.50/x
  3. Step 3: Cross multiply
    812,446.44x = 1,121,162.40 × 449,862.50
  4. Step 4: Simplify right side
    812,446.44x = 504,368,914,564.19
  5. Step 5: Solve for x
    x = 504,368,914,564.19/812,446.44
  6. Step 6: Final answer
    x = 620,802.66

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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.