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Finding the Fourth Proportional to 455,480.70, 682,783.65 and 354,222.60

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Solution

The fourth proportional to 455,480.70, 682,783.65 and 354,222.60 is: 530,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,480.70 : 682,783.65 = 354,222.60 : x
  2. Step 2: Convert to fraction form
    455,480.70/682,783.65 = 354,222.60/x
  3. Step 3: Cross multiply
    455,480.70x = 682,783.65 × 354,222.60
  4. Step 4: Simplify right side
    455,480.70x = 241,857,399,740.49
  5. Step 5: Solve for x
    x = 241,857,399,740.49/455,480.70
  6. Step 6: Final answer
    x = 530,993.74

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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.