Home / 703,986.80-1,053,647.40-647,999.60

Finding the Fourth Proportional to 703,986.80, 1,053,647.40 and 647,999.60

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Solution

The fourth proportional to 703,986.80, 1,053,647.40 and 647,999.60 is: 969,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,986.80 : 1,053,647.40 = 647,999.60 : x
  2. Step 2: Convert to fraction form
    703,986.80/1,053,647.40 = 647,999.60/x
  3. Step 3: Cross multiply
    703,986.80x = 1,053,647.40 × 647,999.60
  4. Step 4: Simplify right side
    703,986.80x = 682,763,093,741.04
  5. Step 5: Solve for x
    x = 682,763,093,741.04/703,986.80
  6. Step 6: Final answer
    x = 969,852.12

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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.