Home / 511,754.40-766,370.07-321,743.39

Finding the Fourth Proportional to 511,754.40, 766,370.07 and 321,743.39

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Solution

The fourth proportional to 511,754.40, 766,370.07 and 321,743.39 is: 481,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,754.40 : 766,370.07 = 321,743.39 : x
  2. Step 2: Convert to fraction form
    511,754.40/766,370.07 = 321,743.39/x
  3. Step 3: Cross multiply
    511,754.40x = 766,370.07 × 321,743.39
  4. Step 4: Simplify right side
    511,754.40x = 246,574,500,484.49
  5. Step 5: Solve for x
    x = 246,574,500,484.49/511,754.40
  6. Step 6: Final answer
    x = 481,821.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.