Home / 726,428.56-1,089,279.54-270,865.48

Finding the Fourth Proportional to 726,428.56, 1,089,279.54 and 270,865.48

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Solution

The fourth proportional to 726,428.56, 1,089,279.54 and 270,865.48 is: 406,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,428.56 : 1,089,279.54 = 270,865.48 : x
  2. Step 2: Convert to fraction form
    726,428.56/1,089,279.54 = 270,865.48/x
  3. Step 3: Cross multiply
    726,428.56x = 1,089,279.54 × 270,865.48
  4. Step 4: Simplify right side
    726,428.56x = 295,048,225,456.28
  5. Step 5: Solve for x
    x = 295,048,225,456.28/726,428.56
  6. Step 6: Final answer
    x = 406,162.76

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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.