Home / 1,208,115.81-1,667,164.56-664,251.03

Finding the Fourth Proportional to 1,208,115.81, 1,667,164.56 and 664,251.03

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Solution

The fourth proportional to 1,208,115.81, 1,667,164.56 and 664,251.03 is: 916,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,115.81 : 1,667,164.56 = 664,251.03 : x
  2. Step 2: Convert to fraction form
    1,208,115.81/1,667,164.56 = 664,251.03/x
  3. Step 3: Cross multiply
    1,208,115.81x = 1,667,164.56 × 664,251.03
  4. Step 4: Simplify right side
    1,208,115.81x = 1,107,415,776,159.50
  5. Step 5: Solve for x
    x = 1,107,415,776,159.50/1,208,115.81
  6. Step 6: Final answer
    x = 916,647.04

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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.