Home / 1,122,431.79-1,683,813.78-412,404.51

Finding the Fourth Proportional to 1,122,431.79, 1,683,813.78 and 412,404.51

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Solution

The fourth proportional to 1,122,431.79, 1,683,813.78 and 412,404.51 is: 618,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,431.79 : 1,683,813.78 = 412,404.51 : x
  2. Step 2: Convert to fraction form
    1,122,431.79/1,683,813.78 = 412,404.51/x
  3. Step 3: Cross multiply
    1,122,431.79x = 1,683,813.78 × 412,404.51
  4. Step 4: Simplify right side
    1,122,431.79x = 694,412,396,872.15
  5. Step 5: Solve for x
    x = 694,412,396,872.15/1,122,431.79
  6. Step 6: Final answer
    x = 618,667.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.