Home / 766,691.52-1,058,041.50-422,540.03

Finding the Fourth Proportional to 766,691.52, 1,058,041.50 and 422,540.03

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Solution

The fourth proportional to 766,691.52, 1,058,041.50 and 422,540.03 is: 583,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,691.52 : 1,058,041.50 = 422,540.03 : x
  2. Step 2: Convert to fraction form
    766,691.52/1,058,041.50 = 422,540.03/x
  3. Step 3: Cross multiply
    766,691.52x = 1,058,041.50 × 422,540.03
  4. Step 4: Simplify right side
    766,691.52x = 447,064,887,151.25
  5. Step 5: Solve for x
    x = 447,064,887,151.25/766,691.52
  6. Step 6: Final answer
    x = 583,109.21

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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.