Home / 766,749.80-1,058,071.54-422,584.66

Finding the Fourth Proportional to 766,749.80, 1,058,071.54 and 422,584.66

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Solution

The fourth proportional to 766,749.80, 1,058,071.54 and 422,584.66 is: 583,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,749.80 : 1,058,071.54 = 422,584.66 : x
  2. Step 2: Convert to fraction form
    766,749.80/1,058,071.54 = 422,584.66/x
  3. Step 3: Cross multiply
    766,749.80x = 1,058,071.54 × 422,584.66
  4. Step 4: Simplify right side
    766,749.80x = 447,124,801,986.58
  5. Step 5: Solve for x
    x = 447,124,801,986.58/766,749.80
  6. Step 6: Final answer
    x = 583,143.03

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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.