Home / 726,503.13-1,089,743.74-326,861.69

Finding the Fourth Proportional to 726,503.13, 1,089,743.74 and 326,861.69

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Solution

The fourth proportional to 726,503.13, 1,089,743.74 and 326,861.69 is: 490,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,503.13 : 1,089,743.74 = 326,861.69 : x
  2. Step 2: Convert to fraction form
    726,503.13/1,089,743.74 = 326,861.69/x
  3. Step 3: Cross multiply
    726,503.13x = 1,089,743.74 × 326,861.69
  4. Step 4: Simplify right side
    726,503.13x = 356,195,474,257.45
  5. Step 5: Solve for x
    x = 356,195,474,257.45/726,503.13
  6. Step 6: Final answer
    x = 490,287.60

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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.