Home / 3,111,208-4,293,469.92-1,680,424

Finding the Fourth Proportional to 3,111,208, 4,293,469.92 and 1,680,424

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Solution

The fourth proportional to 3,111,208, 4,293,469.92 and 1,680,424 is: 2,318,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,208 : 4,293,469.92 = 1,680,424 : x
  2. Step 2: Convert to fraction form
    3,111,208/4,293,469.92 = 1,680,424/x
  3. Step 3: Cross multiply
    3,111,208x = 4,293,469.92 × 1,680,424
  4. Step 4: Simplify right side
    3,111,208x = 7,214,849,896,846.08
  5. Step 5: Solve for x
    x = 7,214,849,896,846.08/3,111,208
  6. Step 6: Final answer
    x = 2,318,986.68

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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.