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Finding the Fourth Proportional to 603,705.13, 905,972.90 and 248,719.15

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Solution

The fourth proportional to 603,705.13, 905,972.90 and 248,719.15 is: 373,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,705.13 : 905,972.90 = 248,719.15 : x
  2. Step 2: Convert to fraction form
    603,705.13/905,972.90 = 248,719.15/x
  3. Step 3: Cross multiply
    603,705.13x = 905,972.90 × 248,719.15
  4. Step 4: Simplify right side
    603,705.13x = 225,332,809,611.04
  5. Step 5: Solve for x
    x = 225,332,809,611.04/603,705.13
  6. Step 6: Final answer
    x = 373,249.78

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1.5x scale

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.