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Finding the Fourth Proportional to 603,928.80, 906,002.55 and 303,653.70

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Solution

The fourth proportional to 603,928.80, 906,002.55 and 303,653.70 is: 455,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,928.80 : 906,002.55 = 303,653.70 : x
  2. Step 2: Convert to fraction form
    603,928.80/906,002.55 = 303,653.70/x
  3. Step 3: Cross multiply
    603,928.80x = 906,002.55 × 303,653.70
  4. Step 4: Simplify right side
    603,928.80x = 275,111,026,516.94
  5. Step 5: Solve for x
    x = 275,111,026,516.94/603,928.80
  6. Step 6: Final answer
    x = 455,535.53

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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.