Home / 1,207,983.74-1,667,028.77-664,123.35

Finding the Fourth Proportional to 1,207,983.74, 1,667,028.77 and 664,123.35

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Solution

The fourth proportional to 1,207,983.74, 1,667,028.77 and 664,123.35 is: 916,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,983.74 : 1,667,028.77 = 664,123.35 : x
  2. Step 2: Convert to fraction form
    1,207,983.74/1,667,028.77 = 664,123.35/x
  3. Step 3: Cross multiply
    1,207,983.74x = 1,667,028.77 × 664,123.35
  4. Step 4: Simplify right side
    1,207,983.74x = 1,107,112,727,958.16
  5. Step 5: Solve for x
    x = 1,107,112,727,958.16/1,207,983.74
  6. Step 6: Final answer
    x = 916,496.39

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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.