Home / 861,215.77-1,291,896.57-262,181.89

Finding the Fourth Proportional to 861,215.77, 1,291,896.57 and 262,181.89

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Solution

The fourth proportional to 861,215.77, 1,291,896.57 and 262,181.89 is: 393,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,215.77 : 1,291,896.57 = 262,181.89 : x
  2. Step 2: Convert to fraction form
    861,215.77/1,291,896.57 = 262,181.89/x
  3. Step 3: Cross multiply
    861,215.77x = 1,291,896.57 × 262,181.89
  4. Step 4: Simplify right side
    861,215.77x = 338,711,884,407.12
  5. Step 5: Solve for x
    x = 338,711,884,407.12/861,215.77
  6. Step 6: Final answer
    x = 393,295.03

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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.