Home / 1,085,705.80-1,628,558.70-749,782.60

Finding the Fourth Proportional to 1,085,705.80, 1,628,558.70 and 749,782.60

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Solution

The fourth proportional to 1,085,705.80, 1,628,558.70 and 749,782.60 is: 1,124,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,705.80 : 1,628,558.70 = 749,782.60 : x
  2. Step 2: Convert to fraction form
    1,085,705.80/1,628,558.70 = 749,782.60/x
  3. Step 3: Cross multiply
    1,085,705.80x = 1,628,558.70 × 749,782.60
  4. Step 4: Simplify right side
    1,085,705.80x = 1,221,064,976,338.62
  5. Step 5: Solve for x
    x = 1,221,064,976,338.62/1,085,705.80
  6. Step 6: Final answer
    x = 1,124,673.90

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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.