Home / 773,010.40-1,160,091.60-398,840.80

Finding the Fourth Proportional to 773,010.40, 1,160,091.60 and 398,840.80

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Solution

The fourth proportional to 773,010.40, 1,160,091.60 and 398,840.80 is: 598,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,010.40 : 1,160,091.60 = 398,840.80 : x
  2. Step 2: Convert to fraction form
    773,010.40/1,160,091.60 = 398,840.80/x
  3. Step 3: Cross multiply
    773,010.40x = 1,160,091.60 × 398,840.80
  4. Step 4: Simplify right side
    773,010.40x = 462,691,861,817.28
  5. Step 5: Solve for x
    x = 462,691,861,817.28/773,010.40
  6. Step 6: Final answer
    x = 598,558.39

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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.