Home / 726,209.20-1,089,313.80-371,105.20

Finding the Fourth Proportional to 726,209.20, 1,089,313.80 and 371,105.20

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Solution

The fourth proportional to 726,209.20, 1,089,313.80 and 371,105.20 is: 556,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,209.20 : 1,089,313.80 = 371,105.20 : x
  2. Step 2: Convert to fraction form
    726,209.20/1,089,313.80 = 371,105.20/x
  3. Step 3: Cross multiply
    726,209.20x = 1,089,313.80 × 371,105.20
  4. Step 4: Simplify right side
    726,209.20x = 404,250,015,611.76
  5. Step 5: Solve for x
    x = 404,250,015,611.76/726,209.20
  6. Step 6: Final answer
    x = 556,657.80

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Double scale
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Similar ratio
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1.5x scale

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.