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Finding the Fourth Proportional to 606,780, 837,356.76 and 338,508

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Solution

The fourth proportional to 606,780, 837,356.76 and 338,508 is: 467,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,780 : 837,356.76 = 338,508 : x
  2. Step 2: Convert to fraction form
    606,780/837,356.76 = 338,508/x
  3. Step 3: Cross multiply
    606,780x = 837,356.76 × 338,508
  4. Step 4: Simplify right side
    606,780x = 283,451,962,114.08
  5. Step 5: Solve for x
    x = 283,451,962,114.08/606,780
  6. Step 6: Final answer
    x = 467,141.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.