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Finding the Fourth Proportional to 610,794.11, 842,997.05 and 338,949.32

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Solution

The fourth proportional to 610,794.11, 842,997.05 and 338,949.32 is: 467,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,794.11 : 842,997.05 = 338,949.32 : x
  2. Step 2: Convert to fraction form
    610,794.11/842,997.05 = 338,949.32/x
  3. Step 3: Cross multiply
    610,794.11x = 842,997.05 × 338,949.32
  4. Step 4: Simplify right side
    610,794.11x = 285,733,270,949.77
  5. Step 5: Solve for x
    x = 285,733,270,949.77/610,794.11
  6. Step 6: Final answer
    x = 467,806.20

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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.