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Finding the Fourth Proportional to 603,737.20, 905,605.80 and 323,801.20

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Solution

The fourth proportional to 603,737.20, 905,605.80 and 323,801.20 is: 485,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,737.20 : 905,605.80 = 323,801.20 : x
  2. Step 2: Convert to fraction form
    603,737.20/905,605.80 = 323,801.20/x
  3. Step 3: Cross multiply
    603,737.20x = 905,605.80 × 323,801.20
  4. Step 4: Simplify right side
    603,737.20x = 293,236,244,766.96
  5. Step 5: Solve for x
    x = 293,236,244,766.96/603,737.20
  6. Step 6: Final answer
    x = 485,701.80

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1.5x scale

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.