Home / 1,247,578.28-1,871,435.48-394,586.22

Finding the Fourth Proportional to 1,247,578.28, 1,871,435.48 and 394,586.22

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Solution

The fourth proportional to 1,247,578.28, 1,871,435.48 and 394,586.22 is: 591,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,578.28 : 1,871,435.48 = 394,586.22 : x
  2. Step 2: Convert to fraction form
    1,247,578.28/1,871,435.48 = 394,586.22/x
  3. Step 3: Cross multiply
    1,247,578.28x = 1,871,435.48 × 394,586.22
  4. Step 4: Simplify right side
    1,247,578.28x = 738,442,650,054.16
  5. Step 5: Solve for x
    x = 738,442,650,054.16/1,247,578.28
  6. Step 6: Final answer
    x = 591,900.86

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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.