Home / 853,969.59-1,281,020.52-285,352.66

Finding the Fourth Proportional to 853,969.59, 1,281,020.52 and 285,352.66

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Solution

The fourth proportional to 853,969.59, 1,281,020.52 and 285,352.66 is: 428,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,969.59 : 1,281,020.52 = 285,352.66 : x
  2. Step 2: Convert to fraction form
    853,969.59/1,281,020.52 = 285,352.66/x
  3. Step 3: Cross multiply
    853,969.59x = 1,281,020.52 × 285,352.66
  4. Step 4: Simplify right side
    853,969.59x = 365,542,612,896.58
  5. Step 5: Solve for x
    x = 365,542,612,896.58/853,969.59
  6. Step 6: Final answer
    x = 428,051.09

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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.