Home / 1,212,836.78-1,673,685.43-668,960.89

Finding the Fourth Proportional to 1,212,836.78, 1,673,685.43 and 668,960.89

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Solution

The fourth proportional to 1,212,836.78, 1,673,685.43 and 668,960.89 is: 923,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,836.78 : 1,673,685.43 = 668,960.89 : x
  2. Step 2: Convert to fraction form
    1,212,836.78/1,673,685.43 = 668,960.89/x
  3. Step 3: Cross multiply
    1,212,836.78x = 1,673,685.43 × 668,960.89
  4. Step 4: Simplify right side
    1,212,836.78x = 1,119,630,094,832.83
  5. Step 5: Solve for x
    x = 1,119,630,094,832.83/1,212,836.78
  6. Step 6: Final answer
    x = 923,149.85

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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.