Home / 1,319,628.80-1,821,086.60-716,016.80

Finding the Fourth Proportional to 1,319,628.80, 1,821,086.60 and 716,016.80

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Solution

The fourth proportional to 1,319,628.80, 1,821,086.60 and 716,016.80 is: 988,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,628.80 : 1,821,086.60 = 716,016.80 : x
  2. Step 2: Convert to fraction form
    1,319,628.80/1,821,086.60 = 716,016.80/x
  3. Step 3: Cross multiply
    1,319,628.80x = 1,821,086.60 × 716,016.80
  4. Step 4: Simplify right side
    1,319,628.80x = 1,303,928,587,169.36
  5. Step 5: Solve for x
    x = 1,303,928,587,169.36/1,319,628.80
  6. Step 6: Final answer
    x = 988,102.56

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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.