Home / 1,238,361.95-1,708,936.52-687,161.41

Finding the Fourth Proportional to 1,238,361.95, 1,708,936.52 and 687,161.41

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Solution

The fourth proportional to 1,238,361.95, 1,708,936.52 and 687,161.41 is: 948,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,361.95 : 1,708,936.52 = 687,161.41 : x
  2. Step 2: Convert to fraction form
    1,238,361.95/1,708,936.52 = 687,161.41/x
  3. Step 3: Cross multiply
    1,238,361.95x = 1,708,936.52 × 687,161.41
  4. Step 4: Simplify right side
    1,238,361.95x = 1,174,315,220,975.54
  5. Step 5: Solve for x
    x = 1,174,315,220,975.54/1,238,361.95
  6. Step 6: Final answer
    x = 948,281.09

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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.