Home / 1,212,995.72-1,673,929.40-669,165.37

Finding the Fourth Proportional to 1,212,995.72, 1,673,929.40 and 669,165.37

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Solution

The fourth proportional to 1,212,995.72, 1,673,929.40 and 669,165.37 is: 923,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,995.72 : 1,673,929.40 = 669,165.37 : x
  2. Step 2: Convert to fraction form
    1,212,995.72/1,673,929.40 = 669,165.37/x
  3. Step 3: Cross multiply
    1,212,995.72x = 1,673,929.40 × 669,165.37
  4. Step 4: Simplify right side
    1,212,995.72x = 1,120,135,578,774.23
  5. Step 5: Solve for x
    x = 1,120,135,578,774.23/1,212,995.72
  6. Step 6: Final answer
    x = 923,445.61

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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.