Home / 1,208,139.05-1,667,187.05-664,242.48

Finding the Fourth Proportional to 1,208,139.05, 1,667,187.05 and 664,242.48

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Solution

The fourth proportional to 1,208,139.05, 1,667,187.05 and 664,242.48 is: 916,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,139.05 : 1,667,187.05 = 664,242.48 : x
  2. Step 2: Convert to fraction form
    1,208,139.05/1,667,187.05 = 664,242.48/x
  3. Step 3: Cross multiply
    1,208,139.05x = 1,667,187.05 × 664,242.48
  4. Step 4: Simplify right side
    1,208,139.05x = 1,107,416,460,715.88
  5. Step 5: Solve for x
    x = 1,107,416,460,715.88/1,208,139.05
  6. Step 6: Final answer
    x = 916,629.97

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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.