Home / 726,481.51-1,089,711.32-326,840.06

Finding the Fourth Proportional to 726,481.51, 1,089,711.32 and 326,840.06

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Solution

The fourth proportional to 726,481.51, 1,089,711.32 and 326,840.06 is: 490,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,481.51 : 1,089,711.32 = 326,840.06 : x
  2. Step 2: Convert to fraction form
    726,481.51/1,089,711.32 = 326,840.06/x
  3. Step 3: Cross multiply
    726,481.51x = 1,089,711.32 × 326,840.06
  4. Step 4: Simplify right side
    726,481.51x = 356,161,313,211.48
  5. Step 5: Solve for x
    x = 356,161,313,211.48/726,481.51
  6. Step 6: Final answer
    x = 490,255.17

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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.