Home / 1,185,350.75-1,635,789.25-641,486.62

Finding the Fourth Proportional to 1,185,350.75, 1,635,789.25 and 641,486.62

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Solution

The fourth proportional to 1,185,350.75, 1,635,789.25 and 641,486.62 is: 885,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,350.75 : 1,635,789.25 = 641,486.62 : x
  2. Step 2: Convert to fraction form
    1,185,350.75/1,635,789.25 = 641,486.62/x
  3. Step 3: Cross multiply
    1,185,350.75x = 1,635,789.25 × 641,486.62
  4. Step 4: Simplify right side
    1,185,350.75x = 1,049,336,925,116.10
  5. Step 5: Solve for x
    x = 1,049,336,925,116.10/1,185,350.75
  6. Step 6: Final answer
    x = 885,254.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.