Home / 823,443.40-1,235,222.70-324,742.60

Finding the Fourth Proportional to 823,443.40, 1,235,222.70 and 324,742.60

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Solution

The fourth proportional to 823,443.40, 1,235,222.70 and 324,742.60 is: 487,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,443.40 : 1,235,222.70 = 324,742.60 : x
  2. Step 2: Convert to fraction form
    823,443.40/1,235,222.70 = 324,742.60/x
  3. Step 3: Cross multiply
    823,443.40x = 1,235,222.70 × 324,742.60
  4. Step 4: Simplify right side
    823,443.40x = 401,129,431,177.02
  5. Step 5: Solve for x
    x = 401,129,431,177.02/823,443.40
  6. Step 6: Final answer
    x = 487,136.62

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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.