Home / 754,113.09-1,040,682.83-409,949.68

Finding the Fourth Proportional to 754,113.09, 1,040,682.83 and 409,949.68

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Solution

The fourth proportional to 754,113.09, 1,040,682.83 and 409,949.68 is: 565,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,113.09 : 1,040,682.83 = 409,949.68 : x
  2. Step 2: Convert to fraction form
    754,113.09/1,040,682.83 = 409,949.68/x
  3. Step 3: Cross multiply
    754,113.09x = 1,040,682.83 × 409,949.68
  4. Step 4: Simplify right side
    754,113.09x = 426,627,593,139.99
  5. Step 5: Solve for x
    x = 426,627,593,139.99/754,113.09
  6. Step 6: Final answer
    x = 565,734.24

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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.