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Finding the Fourth Proportional to 606,778, 837,354 and 338,506

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Solution

The fourth proportional to 606,778, 837,354 and 338,506 is: 467,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,778 : 837,354 = 338,506 : x
  2. Step 2: Convert to fraction form
    606,778/837,354 = 338,506/x
  3. Step 3: Cross multiply
    606,778x = 837,354 × 338,506
  4. Step 4: Simplify right side
    606,778x = 283,449,353,124
  5. Step 5: Solve for x
    x = 283,449,353,124/606,778
  6. Step 6: Final answer
    x = 467,138.48

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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.