Home / 754,114.21-1,040,684.39-409,950.81

Finding the Fourth Proportional to 754,114.21, 1,040,684.39 and 409,950.81

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Solution

The fourth proportional to 754,114.21, 1,040,684.39 and 409,950.81 is: 565,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,114.21 : 1,040,684.39 = 409,950.81 : x
  2. Step 2: Convert to fraction form
    754,114.21/1,040,684.39 = 409,950.81/x
  3. Step 3: Cross multiply
    754,114.21x = 1,040,684.39 × 409,950.81
  4. Step 4: Simplify right side
    754,114.21x = 426,629,408,634.86
  5. Step 5: Solve for x
    x = 426,629,408,634.86/754,114.21
  6. Step 6: Final answer
    x = 565,735.80

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1.5x scale

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.