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Finding the Fourth Proportional to 484,989.32, 669,318.90 and 294,010.76

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Solution

The fourth proportional to 484,989.32, 669,318.90 and 294,010.76 is: 405,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,989.32 : 669,318.90 = 294,010.76 : x
  2. Step 2: Convert to fraction form
    484,989.32/669,318.90 = 294,010.76/x
  3. Step 3: Cross multiply
    484,989.32x = 669,318.90 × 294,010.76
  4. Step 4: Simplify right side
    484,989.32x = 196,786,958,471.36
  5. Step 5: Solve for x
    x = 196,786,958,471.36/484,989.32
  6. Step 6: Final answer
    x = 405,755.24

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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.