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Finding the Fourth Proportional to 610,540.65, 842,597.87 and 338,696.15

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Solution

The fourth proportional to 610,540.65, 842,597.87 and 338,696.15 is: 467,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,540.65 : 842,597.87 = 338,696.15 : x
  2. Step 2: Convert to fraction form
    610,540.65/842,597.87 = 338,696.15/x
  3. Step 3: Cross multiply
    610,540.65x = 842,597.87 × 338,696.15
  4. Step 4: Simplify right side
    610,540.65x = 285,384,648,660.73
  5. Step 5: Solve for x
    x = 285,384,648,660.73/610,540.65
  6. Step 6: Final answer
    x = 467,429.40

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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.