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Finding the Fourth Proportional to 627,354.66, 940,503 and 272,101.20

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Solution

The fourth proportional to 627,354.66, 940,503 and 272,101.20 is: 407,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,354.66 : 940,503 = 272,101.20 : x
  2. Step 2: Convert to fraction form
    627,354.66/940,503 = 272,101.20/x
  3. Step 3: Cross multiply
    627,354.66x = 940,503 × 272,101.20
  4. Step 4: Simplify right side
    627,354.66x = 255,911,994,903.60
  5. Step 5: Solve for x
    x = 255,911,994,903.60/627,354.66
  6. Step 6: Final answer
    x = 407,922.36

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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.