Home / 831,210.80-1,246,816.20-726,234.80

Finding the Fourth Proportional to 831,210.80, 1,246,816.20 and 726,234.80

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Solution

The fourth proportional to 831,210.80, 1,246,816.20 and 726,234.80 is: 1,089,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,210.80 : 1,246,816.20 = 726,234.80 : x
  2. Step 2: Convert to fraction form
    831,210.80/1,246,816.20 = 726,234.80/x
  3. Step 3: Cross multiply
    831,210.80x = 1,246,816.20 × 726,234.80
  4. Step 4: Simplify right side
    831,210.80x = 905,481,313,643.76
  5. Step 5: Solve for x
    x = 905,481,313,643.76/831,210.80
  6. Step 6: Final answer
    x = 1,089,352.20

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Half scale
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Double scale
Find fourth proportional to 831,211.80, 1,246,817.70 and 726,235.80
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.