Home / 2,629,436.40-3,945,403.67-1,821,064.81

Finding the Fourth Proportional to 2,629,436.40, 3,945,403.67 and 1,821,064.81

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Solution

The fourth proportional to 2,629,436.40, 3,945,403.67 and 1,821,064.81 is: 2,732,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,436.40 : 3,945,403.67 = 1,821,064.81 : x
  2. Step 2: Convert to fraction form
    2,629,436.40/3,945,403.67 = 1,821,064.81/x
  3. Step 3: Cross multiply
    2,629,436.40x = 3,945,403.67 × 1,821,064.81
  4. Step 4: Simplify right side
    2,629,436.40x = 7,184,835,784,681.85
  5. Step 5: Solve for x
    x = 7,184,835,784,681.85/2,629,436.40
  6. Step 6: Final answer
    x = 2,732,462.28

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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.