Home / 1,349,091.20-2,021,012.40-815,025.80

Finding the Fourth Proportional to 1,349,091.20, 2,021,012.40 and 815,025.80

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Solution

The fourth proportional to 1,349,091.20, 2,021,012.40 and 815,025.80 is: 1,220,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,091.20 : 2,021,012.40 = 815,025.80 : x
  2. Step 2: Convert to fraction form
    1,349,091.20/2,021,012.40 = 815,025.80/x
  3. Step 3: Cross multiply
    1,349,091.20x = 2,021,012.40 × 815,025.80
  4. Step 4: Simplify right side
    1,349,091.20x = 1,647,177,248,119.92
  5. Step 5: Solve for x
    x = 1,647,177,248,119.92/1,349,091.20
  6. Step 6: Final answer
    x = 1,220,953.22

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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.