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Finding the Fourth Proportional to 454,918, 627,583.98 and 263,820.64

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Solution

The fourth proportional to 454,918, 627,583.98 and 263,820.64 is: 363,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,918 : 627,583.98 = 263,820.64 : x
  2. Step 2: Convert to fraction form
    454,918/627,583.98 = 263,820.64/x
  3. Step 3: Cross multiply
    454,918x = 627,583.98 × 263,820.64
  4. Step 4: Simplify right side
    454,918x = 165,569,607,257.35
  5. Step 5: Solve for x
    x = 165,569,607,257.35/454,918
  6. Step 6: Final answer
    x = 363,954.84

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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.