Home / 823,784.60-1,235,676.90-800,456.60

Finding the Fourth Proportional to 823,784.60, 1,235,676.90 and 800,456.60

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Solution

The fourth proportional to 823,784.60, 1,235,676.90 and 800,456.60 is: 1,200,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,784.60 : 1,235,676.90 = 800,456.60 : x
  2. Step 2: Convert to fraction form
    823,784.60/1,235,676.90 = 800,456.60/x
  3. Step 3: Cross multiply
    823,784.60x = 1,235,676.90 × 800,456.60
  4. Step 4: Simplify right side
    823,784.60x = 989,105,730,072.54
  5. Step 5: Solve for x
    x = 989,105,730,072.54/823,784.60
  6. Step 6: Final answer
    x = 1,200,684.90

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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.