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Finding the Fourth Proportional to 603,737.40, 905,606.10 and 323,801.40

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Solution

The fourth proportional to 603,737.40, 905,606.10 and 323,801.40 is: 485,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,737.40 : 905,606.10 = 323,801.40 : x
  2. Step 2: Convert to fraction form
    603,737.40/905,606.10 = 323,801.40/x
  3. Step 3: Cross multiply
    603,737.40x = 905,606.10 × 323,801.40
  4. Step 4: Simplify right side
    603,737.40x = 293,236,523,028.54
  5. Step 5: Solve for x
    x = 293,236,523,028.54/603,737.40
  6. Step 6: Final answer
    x = 485,702.10

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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.