Home / 766,709.96-1,058,067.16-422,558.47

Finding the Fourth Proportional to 766,709.96, 1,058,067.16 and 422,558.47

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Solution

The fourth proportional to 766,709.96, 1,058,067.16 and 422,558.47 is: 583,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,709.96 : 1,058,067.16 = 422,558.47 : x
  2. Step 2: Convert to fraction form
    766,709.96/1,058,067.16 = 422,558.47/x
  3. Step 3: Cross multiply
    766,709.96x = 1,058,067.16 × 422,558.47
  4. Step 4: Simplify right side
    766,709.96x = 447,095,240,553.03
  5. Step 5: Solve for x
    x = 447,095,240,553.03/766,709.96
  6. Step 6: Final answer
    x = 583,134.78

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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.