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Finding the Fourth Proportional to 484,493.30, 668,450.28 and 274,906.77

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Solution

The fourth proportional to 484,493.30, 668,450.28 and 274,906.77 is: 379,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,493.30 : 668,450.28 = 274,906.77 : x
  2. Step 2: Convert to fraction form
    484,493.30/668,450.28 = 274,906.77/x
  3. Step 3: Cross multiply
    484,493.30x = 668,450.28 × 274,906.77
  4. Step 4: Simplify right side
    484,493.30x = 183,761,507,380.40
  5. Step 5: Solve for x
    x = 183,761,507,380.40/484,493.30
  6. Step 6: Final answer
    x = 379,285.96

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1.5x scale

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.