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Finding the Fourth Proportional to 454,928, 627,597.78 and 263,830.64

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Solution

The fourth proportional to 454,928, 627,597.78 and 263,830.64 is: 363,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,928 : 627,597.78 = 263,830.64 : x
  2. Step 2: Convert to fraction form
    454,928/627,597.78 = 263,830.64/x
  3. Step 3: Cross multiply
    454,928x = 627,597.78 × 263,830.64
  4. Step 4: Simplify right side
    454,928x = 165,579,523,959.98
  5. Step 5: Solve for x
    x = 165,579,523,959.98/454,928
  6. Step 6: Final answer
    x = 363,968.64

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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.