Home / 1,315,222.56-1,815,007.02-711,610.56

Finding the Fourth Proportional to 1,315,222.56, 1,815,007.02 and 711,610.56

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Solution

The fourth proportional to 1,315,222.56, 1,815,007.02 and 711,610.56 is: 982,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,222.56 : 1,815,007.02 = 711,610.56 : x
  2. Step 2: Convert to fraction form
    1,315,222.56/1,815,007.02 = 711,610.56/x
  3. Step 3: Cross multiply
    1,315,222.56x = 1,815,007.02 × 711,610.56
  4. Step 4: Simplify right side
    1,315,222.56x = 1,291,578,161,906.13
  5. Step 5: Solve for x
    x = 1,291,578,161,906.13/1,315,222.56
  6. Step 6: Final answer
    x = 982,022.51

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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.