Home / 1,185,264.64-1,635,652.74-641,388.52

Finding the Fourth Proportional to 1,185,264.64, 1,635,652.74 and 641,388.52

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Solution

The fourth proportional to 1,185,264.64, 1,635,652.74 and 641,388.52 is: 885,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,264.64 : 1,635,652.74 = 641,388.52 : x
  2. Step 2: Convert to fraction form
    1,185,264.64/1,635,652.74 = 641,388.52/x
  3. Step 3: Cross multiply
    1,185,264.64x = 1,635,652.74 × 641,388.52
  4. Step 4: Simplify right side
    1,185,264.64x = 1,049,088,890,142.54
  5. Step 5: Solve for x
    x = 1,049,088,890,142.54/1,185,264.64
  6. Step 6: Final answer
    x = 885,109.41

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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.