Home / 1,603,859.70-2,405,792.66-389,431.23

Finding the Fourth Proportional to 1,603,859.70, 2,405,792.66 and 389,431.23

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Solution

The fourth proportional to 1,603,859.70, 2,405,792.66 and 389,431.23 is: 584,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,859.70 : 2,405,792.66 = 389,431.23 : x
  2. Step 2: Convert to fraction form
    1,603,859.70/2,405,792.66 = 389,431.23/x
  3. Step 3: Cross multiply
    1,603,859.70x = 2,405,792.66 × 389,431.23
  4. Step 4: Simplify right side
    1,603,859.70x = 936,890,792,761.62
  5. Step 5: Solve for x
    x = 936,890,792,761.62/1,603,859.70
  6. Step 6: Final answer
    x = 584,147.60

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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.