Home / 1,225,511.52-1,691,181.64-681,635.60

Finding the Fourth Proportional to 1,225,511.52, 1,691,181.64 and 681,635.60

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Solution

The fourth proportional to 1,225,511.52, 1,691,181.64 and 681,635.60 is: 940,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,511.52 : 1,691,181.64 = 681,635.60 : x
  2. Step 2: Convert to fraction form
    1,225,511.52/1,691,181.64 = 681,635.60/x
  3. Step 3: Cross multiply
    1,225,511.52x = 1,691,181.64 × 681,635.60
  4. Step 4: Simplify right side
    1,225,511.52x = 1,152,769,611,890.38
  5. Step 5: Solve for x
    x = 1,152,769,611,890.38/1,225,511.52
  6. Step 6: Final answer
    x = 940,643.64

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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.