Home / 2,085,854.20-3,128,003.70-823,420.60

Finding the Fourth Proportional to 2,085,854.20, 3,128,003.70 and 823,420.60

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Solution

The fourth proportional to 2,085,854.20, 3,128,003.70 and 823,420.60 is: 1,234,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,854.20 : 3,128,003.70 = 823,420.60 : x
  2. Step 2: Convert to fraction form
    2,085,854.20/3,128,003.70 = 823,420.60/x
  3. Step 3: Cross multiply
    2,085,854.20x = 3,128,003.70 × 823,420.60
  4. Step 4: Simplify right side
    2,085,854.20x = 2,575,662,683,456.22
  5. Step 5: Solve for x
    x = 2,575,662,683,456.22/2,085,854.20
  6. Step 6: Final answer
    x = 1,234,823.93

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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.