Home / 1,208,222.94-1,667,390.43-664,399.98

Finding the Fourth Proportional to 1,208,222.94, 1,667,390.43 and 664,399.98

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Solution

The fourth proportional to 1,208,222.94, 1,667,390.43 and 664,399.98 is: 916,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,222.94 : 1,667,390.43 = 664,399.98 : x
  2. Step 2: Convert to fraction form
    1,208,222.94/1,667,390.43 = 664,399.98/x
  3. Step 3: Cross multiply
    1,208,222.94x = 1,667,390.43 × 664,399.98
  4. Step 4: Simplify right side
    1,208,222.94x = 1,107,814,168,344.19
  5. Step 5: Solve for x
    x = 1,107,814,168,344.19/1,208,222.94
  6. Step 6: Final answer
    x = 916,895.49

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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.