Home / 766,690.52-1,058,040.12-422,539.03

Finding the Fourth Proportional to 766,690.52, 1,058,040.12 and 422,539.03

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Solution

The fourth proportional to 766,690.52, 1,058,040.12 and 422,539.03 is: 583,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,690.52 : 1,058,040.12 = 422,539.03 : x
  2. Step 2: Convert to fraction form
    766,690.52/1,058,040.12 = 422,539.03/x
  3. Step 3: Cross multiply
    766,690.52x = 1,058,040.12 × 422,539.03
  4. Step 4: Simplify right side
    766,690.52x = 447,063,248,912.96
  5. Step 5: Solve for x
    x = 447,063,248,912.96/766,690.52
  6. Step 6: Final answer
    x = 583,107.84

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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.