Home / 1,208,155.14-1,667,211.42-664,287.12

Finding the Fourth Proportional to 1,208,155.14, 1,667,211.42 and 664,287.12

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Solution

The fourth proportional to 1,208,155.14, 1,667,211.42 and 664,287.12 is: 916,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,155.14 : 1,667,211.42 = 664,287.12 : x
  2. Step 2: Convert to fraction form
    1,208,155.14/1,667,211.42 = 664,287.12/x
  3. Step 3: Cross multiply
    1,208,155.14x = 1,667,211.42 × 664,287.12
  4. Step 4: Simplify right side
    1,208,155.14x = 1,107,507,072,622.91
  5. Step 5: Solve for x
    x = 1,107,507,072,622.91/1,208,155.14
  6. Step 6: Final answer
    x = 916,692.76

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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.