Home / 1,208,233.40-1,667,319.42-664,365.40

Finding the Fourth Proportional to 1,208,233.40, 1,667,319.42 and 664,365.40

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Solution

The fourth proportional to 1,208,233.40, 1,667,319.42 and 664,365.40 is: 916,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,233.40 : 1,667,319.42 = 664,365.40 : x
  2. Step 2: Convert to fraction form
    1,208,233.40/1,667,319.42 = 664,365.40/x
  3. Step 3: Cross multiply
    1,208,233.40x = 1,667,319.42 × 664,365.40
  4. Step 4: Simplify right side
    1,208,233.40x = 1,107,709,333,396.07
  5. Step 5: Solve for x
    x = 1,107,709,333,396.07/1,208,233.40
  6. Step 6: Final answer
    x = 916,800.79

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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.