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Finding the Fourth Proportional to 606,140.36, 836,131.20 and 379,392.20

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Solution

The fourth proportional to 606,140.36, 836,131.20 and 379,392.20 is: 523,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,140.36 : 836,131.20 = 379,392.20 : x
  2. Step 2: Convert to fraction form
    606,140.36/836,131.20 = 379,392.20/x
  3. Step 3: Cross multiply
    606,140.36x = 836,131.20 × 379,392.20
  4. Step 4: Simplify right side
    606,140.36x = 317,221,655,456.64
  5. Step 5: Solve for x
    x = 317,221,655,456.64/606,140.36
  6. Step 6: Final answer
    x = 523,346.86

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1.5x scale

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.