Home / 1,212,720.75-1,673,531.96-668,907.27

Finding the Fourth Proportional to 1,212,720.75, 1,673,531.96 and 668,907.27

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Solution

The fourth proportional to 1,212,720.75, 1,673,531.96 and 668,907.27 is: 923,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,720.75 : 1,673,531.96 = 668,907.27 : x
  2. Step 2: Convert to fraction form
    1,212,720.75/1,673,531.96 = 668,907.27/x
  3. Step 3: Cross multiply
    1,212,720.75x = 1,673,531.96 × 668,907.27
  4. Step 4: Simplify right side
    1,212,720.75x = 1,119,437,691,276.81
  5. Step 5: Solve for x
    x = 1,119,437,691,276.81/1,212,720.75
  6. Step 6: Final answer
    x = 923,079.52

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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.