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Finding the Fourth Proportional to 610,686.52, 842,760.90 and 338,745.54

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Solution

The fourth proportional to 610,686.52, 842,760.90 and 338,745.54 is: 467,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,686.52 : 842,760.90 = 338,745.54 : x
  2. Step 2: Convert to fraction form
    610,686.52/842,760.90 = 338,745.54/x
  3. Step 3: Cross multiply
    610,686.52x = 842,760.90 × 338,745.54
  4. Step 4: Simplify right side
    610,686.52x = 285,481,496,161.39
  5. Step 5: Solve for x
    x = 285,481,496,161.39/610,686.52
  6. Step 6: Final answer
    x = 467,476.33

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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.