Home / 766,755.82-1,058,079.81-422,590.66

Finding the Fourth Proportional to 766,755.82, 1,058,079.81 and 422,590.66

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Solution

The fourth proportional to 766,755.82, 1,058,079.81 and 422,590.66 is: 583,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,755.82 : 1,058,079.81 = 422,590.66 : x
  2. Step 2: Convert to fraction form
    766,755.82/1,058,079.81 = 422,590.66/x
  3. Step 3: Cross multiply
    766,755.82x = 1,058,079.81 × 422,590.66
  4. Step 4: Simplify right side
    766,755.82x = 447,134,645,240.58
  5. Step 5: Solve for x
    x = 447,134,645,240.58/766,755.82
  6. Step 6: Final answer
    x = 583,151.29

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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.