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Finding the Fourth Proportional to 606,256.70, 908,400.90 and 381,214.40

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Solution

The fourth proportional to 606,256.70, 908,400.90 and 381,214.40 is: 571,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,256.70 : 908,400.90 = 381,214.40 : x
  2. Step 2: Convert to fraction form
    606,256.70/908,400.90 = 381,214.40/x
  3. Step 3: Cross multiply
    606,256.70x = 908,400.90 × 381,214.40
  4. Step 4: Simplify right side
    606,256.70x = 346,295,504,052.96
  5. Step 5: Solve for x
    x = 346,295,504,052.96/606,256.70
  6. Step 6: Final answer
    x = 571,202.77

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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.