Home / 726,480.27-1,089,709.44-326,838.81

Finding the Fourth Proportional to 726,480.27, 1,089,709.44 and 326,838.81

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Solution

The fourth proportional to 726,480.27, 1,089,709.44 and 326,838.81 is: 490,253.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,480.27 : 1,089,709.44 = 326,838.81 : x
  2. Step 2: Convert to fraction form
    726,480.27/1,089,709.44 = 326,838.81/x
  3. Step 3: Cross multiply
    726,480.27x = 1,089,709.44 × 326,838.81
  4. Step 4: Simplify right side
    726,480.27x = 356,159,336,615.37
  5. Step 5: Solve for x
    x = 356,159,336,615.37/726,480.27
  6. Step 6: Final answer
    x = 490,253.28

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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.