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Finding the Fourth Proportional to 603,735.30, 905,712.30 and 303,460.20

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Solution

The fourth proportional to 603,735.30, 905,712.30 and 303,460.20 is: 455,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,735.30 : 905,712.30 = 303,460.20 : x
  2. Step 2: Convert to fraction form
    603,735.30/905,712.30 = 303,460.20/x
  3. Step 3: Cross multiply
    603,735.30x = 905,712.30 × 303,460.20
  4. Step 4: Simplify right side
    603,735.30x = 274,847,635,700.46
  5. Step 5: Solve for x
    x = 274,847,635,700.46/603,735.30
  6. Step 6: Final answer
    x = 455,245.26

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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.