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Finding the Fourth Proportional to 610,803.12, 843,009.48 and 338,958.33

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Solution

The fourth proportional to 610,803.12, 843,009.48 and 338,958.33 is: 467,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,803.12 : 843,009.48 = 338,958.33 : x
  2. Step 2: Convert to fraction form
    610,803.12/843,009.48 = 338,958.33/x
  3. Step 3: Cross multiply
    610,803.12x = 843,009.48 × 338,958.33
  4. Step 4: Simplify right side
    610,803.12x = 285,745,085,514.97
  5. Step 5: Solve for x
    x = 285,745,085,514.97/610,803.12
  6. Step 6: Final answer
    x = 467,818.64

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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.