Home / 721,581.57-1,082,197.40-300,627.81

Finding the Fourth Proportional to 721,581.57, 1,082,197.40 and 300,627.81

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Solution

The fourth proportional to 721,581.57, 1,082,197.40 and 300,627.81 is: 450,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,581.57 : 1,082,197.40 = 300,627.81 : x
  2. Step 2: Convert to fraction form
    721,581.57/1,082,197.40 = 300,627.81/x
  3. Step 3: Cross multiply
    721,581.57x = 1,082,197.40 × 300,627.81
  4. Step 4: Simplify right side
    721,581.57x = 325,338,632,846.56
  5. Step 5: Solve for x
    x = 325,338,632,846.56/721,581.57
  6. Step 6: Final answer
    x = 450,868.82

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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.