Home / 812,360.67-1,121,092.75-449,784.51

Finding the Fourth Proportional to 812,360.67, 1,121,092.75 and 449,784.51

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Solution

The fourth proportional to 812,360.67, 1,121,092.75 and 449,784.51 is: 620,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,360.67 : 1,121,092.75 = 449,784.51 : x
  2. Step 2: Convert to fraction form
    812,360.67/1,121,092.75 = 449,784.51/x
  3. Step 3: Cross multiply
    812,360.67x = 1,121,092.75 × 449,784.51
  4. Step 4: Simplify right side
    812,360.67x = 504,250,152,098.84
  5. Step 5: Solve for x
    x = 504,250,152,098.84/812,360.67
  6. Step 6: Final answer
    x = 620,722.02

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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.