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Finding the Fourth Proportional to 603,930.80, 906,005.55 and 303,655.70

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Solution

The fourth proportional to 603,930.80, 906,005.55 and 303,655.70 is: 455,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,930.80 : 906,005.55 = 303,655.70 : x
  2. Step 2: Convert to fraction form
    603,930.80/906,005.55 = 303,655.70/x
  3. Step 3: Cross multiply
    603,930.80x = 906,005.55 × 303,655.70
  4. Step 4: Simplify right side
    603,930.80x = 275,113,749,489.14
  5. Step 5: Solve for x
    x = 275,113,749,489.14/603,930.80
  6. Step 6: Final answer
    x = 455,538.53

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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.