Home / 766,814.58-1,058,265.14-422,711.73

Finding the Fourth Proportional to 766,814.58, 1,058,265.14 and 422,711.73

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Solution

The fourth proportional to 766,814.58, 1,058,265.14 and 422,711.73 is: 583,375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,814.58 : 1,058,265.14 = 422,711.73 : x
  2. Step 2: Convert to fraction form
    766,814.58/1,058,265.14 = 422,711.73/x
  3. Step 3: Cross multiply
    766,814.58x = 1,058,265.14 × 422,711.73
  4. Step 4: Simplify right side
    766,814.58x = 447,341,086,014.53
  5. Step 5: Solve for x
    x = 447,341,086,014.53/766,814.58
  6. Step 6: Final answer
    x = 583,375.82

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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.