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Finding the Fourth Proportional to 603,480.30, 905,329.80 and 303,205.20

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Solution

The fourth proportional to 603,480.30, 905,329.80 and 303,205.20 is: 454,862.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,480.30 : 905,329.80 = 303,205.20 : x
  2. Step 2: Convert to fraction form
    603,480.30/905,329.80 = 303,205.20/x
  3. Step 3: Cross multiply
    603,480.30x = 905,329.80 × 303,205.20
  4. Step 4: Simplify right side
    603,480.30x = 274,500,703,074.96
  5. Step 5: Solve for x
    x = 274,500,703,074.96/603,480.30
  6. Step 6: Final answer
    x = 454,862.74

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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.