Home / 515,640.09-773,481.12-245,629.44

Finding the Fourth Proportional to 515,640.09, 773,481.12 and 245,629.44

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Solution

The fourth proportional to 515,640.09, 773,481.12 and 245,629.44 is: 368,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,640.09 : 773,481.12 = 245,629.44 : x
  2. Step 2: Convert to fraction form
    515,640.09/773,481.12 = 245,629.44/x
  3. Step 3: Cross multiply
    515,640.09x = 773,481.12 × 245,629.44
  4. Step 4: Simplify right side
    515,640.09x = 189,989,734,356.17
  5. Step 5: Solve for x
    x = 189,989,734,356.17/515,640.09
  6. Step 6: Final answer
    x = 368,454.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.