Home / 726,190.20-1,089,285.30-371,086.20

Finding the Fourth Proportional to 726,190.20, 1,089,285.30 and 371,086.20

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Solution

The fourth proportional to 726,190.20, 1,089,285.30 and 371,086.20 is: 556,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,190.20 : 1,089,285.30 = 371,086.20 : x
  2. Step 2: Convert to fraction form
    726,190.20/1,089,285.30 = 371,086.20/x
  3. Step 3: Cross multiply
    726,190.20x = 1,089,285.30 × 371,086.20
  4. Step 4: Simplify right side
    726,190.20x = 404,218,742,692.86
  5. Step 5: Solve for x
    x = 404,218,742,692.86/726,190.20
  6. Step 6: Final answer
    x = 556,629.30

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Half scale
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Double scale
Find fourth proportional to 726,191.20, 1,089,286.80 and 371,087.20
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.