Home / 1,085,659.80-1,628,489.70-749,736.60

Finding the Fourth Proportional to 1,085,659.80, 1,628,489.70 and 749,736.60

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Solution

The fourth proportional to 1,085,659.80, 1,628,489.70 and 749,736.60 is: 1,124,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,659.80 : 1,628,489.70 = 749,736.60 : x
  2. Step 2: Convert to fraction form
    1,085,659.80/1,628,489.70 = 749,736.60/x
  3. Step 3: Cross multiply
    1,085,659.80x = 1,628,489.70 × 749,736.60
  4. Step 4: Simplify right side
    1,085,659.80x = 1,220,938,330,813.02
  5. Step 5: Solve for x
    x = 1,220,938,330,813.02/1,085,659.80
  6. Step 6: Final answer
    x = 1,124,604.90

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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.