Home / 1,185,272.64-1,635,663.78-641,396.52

Finding the Fourth Proportional to 1,185,272.64, 1,635,663.78 and 641,396.52

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Solution

The fourth proportional to 1,185,272.64, 1,635,663.78 and 641,396.52 is: 885,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,272.64 : 1,635,663.78 = 641,396.52 : x
  2. Step 2: Convert to fraction form
    1,185,272.64/1,635,663.78 = 641,396.52/x
  3. Step 3: Cross multiply
    1,185,272.64x = 1,635,663.78 × 641,396.52
  4. Step 4: Simplify right side
    1,185,272.64x = 1,049,109,056,382.05
  5. Step 5: Solve for x
    x = 1,049,109,056,382.05/1,185,272.64
  6. Step 6: Final answer
    x = 885,120.45

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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.