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Finding the Fourth Proportional to 610,687.69, 842,850.08 and 338,843.16

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Solution

The fourth proportional to 610,687.69, 842,850.08 and 338,843.16 is: 467,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,687.69 : 842,850.08 = 338,843.16 : x
  2. Step 2: Convert to fraction form
    610,687.69/842,850.08 = 338,843.16/x
  3. Step 3: Cross multiply
    610,687.69x = 842,850.08 × 338,843.16
  4. Step 4: Simplify right side
    610,687.69x = 285,593,983,666.35
  5. Step 5: Solve for x
    x = 285,593,983,666.35/610,687.69
  6. Step 6: Final answer
    x = 467,659.64

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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.