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Finding the Fourth Proportional to 603,490.20, 903,923.10 and 366,419.40

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Solution

The fourth proportional to 603,490.20, 903,923.10 and 366,419.40 is: 548,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,490.20 : 903,923.10 = 366,419.40 : x
  2. Step 2: Convert to fraction form
    603,490.20/903,923.10 = 366,419.40/x
  3. Step 3: Cross multiply
    603,490.20x = 903,923.10 × 366,419.40
  4. Step 4: Simplify right side
    603,490.20x = 331,214,959,948.14
  5. Step 5: Solve for x
    x = 331,214,959,948.14/603,490.20
  6. Step 6: Final answer
    x = 548,832.38

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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.