Home / 1,396,043.30-1,926,240.85-815,002.56

Finding the Fourth Proportional to 1,396,043.30, 1,926,240.85 and 815,002.56

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Solution

The fourth proportional to 1,396,043.30, 1,926,240.85 and 815,002.56 is: 1,124,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,043.30 : 1,926,240.85 = 815,002.56 : x
  2. Step 2: Convert to fraction form
    1,396,043.30/1,926,240.85 = 815,002.56/x
  3. Step 3: Cross multiply
    1,396,043.30x = 1,926,240.85 × 815,002.56
  4. Step 4: Simplify right side
    1,396,043.30x = 1,569,891,224,945.33
  5. Step 5: Solve for x
    x = 1,569,891,224,945.33/1,396,043.30
  6. Step 6: Final answer
    x = 1,124,529.03

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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.