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Finding the Fourth Proportional to 603,383.18, 905,060.76 and 303,783.32

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Solution

The fourth proportional to 603,383.18, 905,060.76 and 303,783.32 is: 455,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,383.18 : 905,060.76 = 303,783.32 : x
  2. Step 2: Convert to fraction form
    603,383.18/905,060.76 = 303,783.32/x
  3. Step 3: Cross multiply
    603,383.18x = 905,060.76 × 303,783.32
  4. Step 4: Simplify right side
    603,383.18x = 274,942,357,949.22
  5. Step 5: Solve for x
    x = 274,942,357,949.22/603,383.18
  6. Step 6: Final answer
    x = 455,667.92

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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.