Home / 815,742.40-1,222,418.40-731,502.40

Finding the Fourth Proportional to 815,742.40, 1,222,418.40 and 731,502.40

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Solution

The fourth proportional to 815,742.40, 1,222,418.40 and 731,502.40 is: 1,096,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,742.40 : 1,222,418.40 = 731,502.40 : x
  2. Step 2: Convert to fraction form
    815,742.40/1,222,418.40 = 731,502.40/x
  3. Step 3: Cross multiply
    815,742.40x = 1,222,418.40 × 731,502.40
  4. Step 4: Simplify right side
    815,742.40x = 894,201,993,404.16
  5. Step 5: Solve for x
    x = 894,201,993,404.16/815,742.40
  6. Step 6: Final answer
    x = 1,096,181.83

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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.