Home / 816,271.56-1,222,371-515,845.80

Finding the Fourth Proportional to 816,271.56, 1,222,371 and 515,845.80

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Solution

The fourth proportional to 816,271.56, 1,222,371 and 515,845.80 is: 772,481.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,271.56 : 1,222,371 = 515,845.80 : x
  2. Step 2: Convert to fraction form
    816,271.56/1,222,371 = 515,845.80/x
  3. Step 3: Cross multiply
    816,271.56x = 1,222,371 × 515,845.80
  4. Step 4: Simplify right side
    816,271.56x = 630,554,946,391.80
  5. Step 5: Solve for x
    x = 630,554,946,391.80/816,271.56
  6. Step 6: Final answer
    x = 772,481.83

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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.