Home / 1,189,990.48-1,642,021.65-699,982.24

Finding the Fourth Proportional to 1,189,990.48, 1,642,021.65 and 699,982.24

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Solution

The fourth proportional to 1,189,990.48, 1,642,021.65 and 699,982.24 is: 965,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,990.48 : 1,642,021.65 = 699,982.24 : x
  2. Step 2: Convert to fraction form
    1,189,990.48/1,642,021.65 = 699,982.24/x
  3. Step 3: Cross multiply
    1,189,990.48x = 1,642,021.65 × 699,982.24
  4. Step 4: Simplify right side
    1,189,990.48x = 1,149,385,992,695.50
  5. Step 5: Solve for x
    x = 1,149,385,992,695.50/1,189,990.48
  6. Step 6: Final answer
    x = 965,878.31

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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.