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Finding the Fourth Proportional to 627,353.58, 940,501.32 and 272,100

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Solution

The fourth proportional to 627,353.58, 940,501.32 and 272,100 is: 407,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,353.58 : 940,501.32 = 272,100 : x
  2. Step 2: Convert to fraction form
    627,353.58/940,501.32 = 272,100/x
  3. Step 3: Cross multiply
    627,353.58x = 940,501.32 × 272,100
  4. Step 4: Simplify right side
    627,353.58x = 255,910,409,172
  5. Step 5: Solve for x
    x = 255,910,409,172/627,353.58
  6. Step 6: Final answer
    x = 407,920.54

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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.