Home / 454,811.60-682,217.40-305,512.40

Finding the Fourth Proportional to 454,811.60, 682,217.40 and 305,512.40

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Solution

The fourth proportional to 454,811.60, 682,217.40 and 305,512.40 is: 458,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,811.60 : 682,217.40 = 305,512.40 : x
  2. Step 2: Convert to fraction form
    454,811.60/682,217.40 = 305,512.40/x
  3. Step 3: Cross multiply
    454,811.60x = 682,217.40 × 305,512.40
  4. Step 4: Simplify right side
    454,811.60x = 208,425,875,195.76
  5. Step 5: Solve for x
    x = 208,425,875,195.76/454,811.60
  6. Step 6: Final answer
    x = 458,268.60

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1.5x scale

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.