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Finding the Fourth Proportional to 603,408.20, 903,800.10 and 366,337.40

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Solution

The fourth proportional to 603,408.20, 903,800.10 and 366,337.40 is: 548,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,408.20 : 903,800.10 = 366,337.40 : x
  2. Step 2: Convert to fraction form
    603,408.20/903,800.10 = 366,337.40/x
  3. Step 3: Cross multiply
    603,408.20x = 903,800.10 × 366,337.40
  4. Step 4: Simplify right side
    603,408.20x = 331,095,778,753.74
  5. Step 5: Solve for x
    x = 331,095,778,753.74/603,408.20
  6. Step 6: Final answer
    x = 548,709.45

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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.