Home / 766,690.11-1,058,039.61-422,538.63

Finding the Fourth Proportional to 766,690.11, 1,058,039.61 and 422,538.63

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Solution

The fourth proportional to 766,690.11, 1,058,039.61 and 422,538.63 is: 583,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,690.11 : 1,058,039.61 = 422,538.63 : x
  2. Step 2: Convert to fraction form
    766,690.11/1,058,039.61 = 422,538.63/x
  3. Step 3: Cross multiply
    766,690.11x = 1,058,039.61 × 422,538.63
  4. Step 4: Simplify right side
    766,690.11x = 447,062,607,295.13
  5. Step 5: Solve for x
    x = 447,062,607,295.13/766,690.11
  6. Step 6: Final answer
    x = 583,107.31

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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.