Home / 1,208,489.87-1,667,757.92-664,666.80

Finding the Fourth Proportional to 1,208,489.87, 1,667,757.92 and 664,666.80

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Solution

The fourth proportional to 1,208,489.87, 1,667,757.92 and 664,666.80 is: 917,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,489.87 : 1,667,757.92 = 664,666.80 : x
  2. Step 2: Convert to fraction form
    1,208,489.87/1,667,757.92 = 664,666.80/x
  3. Step 3: Cross multiply
    1,208,489.87x = 1,667,757.92 × 664,666.80
  4. Step 4: Simplify right side
    1,208,489.87x = 1,108,503,316,537.72
  5. Step 5: Solve for x
    x = 1,108,503,316,537.72/1,208,489.87
  6. Step 6: Final answer
    x = 917,263.23

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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.