Home / 1,102,936.08-1,521,664.20-721,186.32

Finding the Fourth Proportional to 1,102,936.08, 1,521,664.20 and 721,186.32

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Solution

The fourth proportional to 1,102,936.08, 1,521,664.20 and 721,186.32 is: 994,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,936.08 : 1,521,664.20 = 721,186.32 : x
  2. Step 2: Convert to fraction form
    1,102,936.08/1,521,664.20 = 721,186.32/x
  3. Step 3: Cross multiply
    1,102,936.08x = 1,521,664.20 × 721,186.32
  4. Step 4: Simplify right side
    1,102,936.08x = 1,097,403,404,673.74
  5. Step 5: Solve for x
    x = 1,097,403,404,673.74/1,102,936.08
  6. Step 6: Final answer
    x = 994,983.68

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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.