Home / 851,029.42-1,276,743.72-338,725.57

Finding the Fourth Proportional to 851,029.42, 1,276,743.72 and 338,725.57

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Solution

The fourth proportional to 851,029.42, 1,276,743.72 and 338,725.57 is: 508,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,029.42 : 1,276,743.72 = 338,725.57 : x
  2. Step 2: Convert to fraction form
    851,029.42/1,276,743.72 = 338,725.57/x
  3. Step 3: Cross multiply
    851,029.42x = 1,276,743.72 × 338,725.57
  4. Step 4: Simplify right side
    851,029.42x = 432,465,745,896.85
  5. Step 5: Solve for x
    x = 432,465,745,896.85/851,029.42
  6. Step 6: Final answer
    x = 508,167.80

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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.