Home / 861,039.96-1,291,608.48-262,020.60

Finding the Fourth Proportional to 861,039.96, 1,291,608.48 and 262,020.60

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Solution

The fourth proportional to 861,039.96, 1,291,608.48 and 262,020.60 is: 393,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,039.96 : 1,291,608.48 = 262,020.60 : x
  2. Step 2: Convert to fraction form
    861,039.96/1,291,608.48 = 262,020.60/x
  3. Step 3: Cross multiply
    861,039.96x = 1,291,608.48 × 262,020.60
  4. Step 4: Simplify right side
    861,039.96x = 338,428,028,894.69
  5. Step 5: Solve for x
    x = 338,428,028,894.69/861,039.96
  6. Step 6: Final answer
    x = 393,045.67

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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.