Home / 1,305,790.78-1,958,700.51-394,982.50

Finding the Fourth Proportional to 1,305,790.78, 1,958,700.51 and 394,982.50

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Solution

The fourth proportional to 1,305,790.78, 1,958,700.51 and 394,982.50 is: 592,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,790.78 : 1,958,700.51 = 394,982.50 : x
  2. Step 2: Convert to fraction form
    1,305,790.78/1,958,700.51 = 394,982.50/x
  3. Step 3: Cross multiply
    1,305,790.78x = 1,958,700.51 × 394,982.50
  4. Step 4: Simplify right side
    1,305,790.78x = 773,652,424,191.08
  5. Step 5: Solve for x
    x = 773,652,424,191.08/1,305,790.78
  6. Step 6: Final answer
    x = 592,478.09

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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.