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Finding the Fourth Proportional to 610,688.07, 842,850.60 and 338,843.54

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Solution

The fourth proportional to 610,688.07, 842,850.60 and 338,843.54 is: 467,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,688.07 : 842,850.60 = 338,843.54 : x
  2. Step 2: Convert to fraction form
    610,688.07/842,850.60 = 338,843.54/x
  3. Step 3: Cross multiply
    610,688.07x = 842,850.60 × 338,843.54
  4. Step 4: Simplify right side
    610,688.07x = 285,594,475,086.65
  5. Step 5: Solve for x
    x = 285,594,475,086.65/610,688.07
  6. Step 6: Final answer
    x = 467,660.15

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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.