Home / 451,442.43-622,480.38-287,880.35

Finding the Fourth Proportional to 451,442.43, 622,480.38 and 287,880.35

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Solution

The fourth proportional to 451,442.43, 622,480.38 and 287,880.35 is: 396,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,442.43 : 622,480.38 = 287,880.35 : x
  2. Step 2: Convert to fraction form
    451,442.43/622,480.38 = 287,880.35/x
  3. Step 3: Cross multiply
    451,442.43x = 622,480.38 × 287,880.35
  4. Step 4: Simplify right side
    451,442.43x = 179,199,869,662.53
  5. Step 5: Solve for x
    x = 179,199,869,662.53/451,442.43
  6. Step 6: Final answer
    x = 396,949.55

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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.