Home / 490,933.76-677,817.60-330,028.16

Finding the Fourth Proportional to 490,933.76, 677,817.60 and 330,028.16

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Solution

The fourth proportional to 490,933.76, 677,817.60 and 330,028.16 is: 455,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,933.76 : 677,817.60 = 330,028.16 : x
  2. Step 2: Convert to fraction form
    490,933.76/677,817.60 = 330,028.16/x
  3. Step 3: Cross multiply
    490,933.76x = 677,817.60 × 330,028.16
  4. Step 4: Simplify right side
    490,933.76x = 223,698,895,343.62
  5. Step 5: Solve for x
    x = 223,698,895,343.62/490,933.76
  6. Step 6: Final answer
    x = 455,660.04

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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.