Home / 726,503.01-1,089,743.55-326,861.56

Finding the Fourth Proportional to 726,503.01, 1,089,743.55 and 326,861.56

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Solution

The fourth proportional to 726,503.01, 1,089,743.55 and 326,861.56 is: 490,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,503.01 : 1,089,743.55 = 326,861.56 : x
  2. Step 2: Convert to fraction form
    726,503.01/1,089,743.55 = 326,861.56/x
  3. Step 3: Cross multiply
    726,503.01x = 1,089,743.55 × 326,861.56
  4. Step 4: Simplify right side
    726,503.01x = 356,195,276,752.94
  5. Step 5: Solve for x
    x = 356,195,276,752.94/726,503.01
  6. Step 6: Final answer
    x = 490,287.41

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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.