Home / 1,427,043.96-1,969,245-815,076.54

Finding the Fourth Proportional to 1,427,043.96, 1,969,245 and 815,076.54

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Solution

The fourth proportional to 1,427,043.96, 1,969,245 and 815,076.54 is: 1,124,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,043.96 : 1,969,245 = 815,076.54 : x
  2. Step 2: Convert to fraction form
    1,427,043.96/1,969,245 = 815,076.54/x
  3. Step 3: Cross multiply
    1,427,043.96x = 1,969,245 × 815,076.54
  4. Step 4: Simplify right side
    1,427,043.96x = 1,605,085,401,012.30
  5. Step 5: Solve for x
    x = 1,605,085,401,012.30/1,427,043.96
  6. Step 6: Final answer
    x = 1,124,762.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.