Home / 839,745.42-1,259,619.03-208,659.23

Finding the Fourth Proportional to 839,745.42, 1,259,619.03 and 208,659.23

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Solution

The fourth proportional to 839,745.42, 1,259,619.03 and 208,659.23 is: 312,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,745.42 : 1,259,619.03 = 208,659.23 : x
  2. Step 2: Convert to fraction form
    839,745.42/1,259,619.03 = 208,659.23/x
  3. Step 3: Cross multiply
    839,745.42x = 1,259,619.03 × 208,659.23
  4. Step 4: Simplify right side
    839,745.42x = 262,831,136,893.15
  5. Step 5: Solve for x
    x = 262,831,136,893.15/839,745.42
  6. Step 6: Final answer
    x = 312,989.07

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1.5x scale

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.