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Finding the Fourth Proportional to 451,636.80, 677,455.20 and 283,675.20

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Solution

The fourth proportional to 451,636.80, 677,455.20 and 283,675.20 is: 425,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,636.80 : 677,455.20 = 283,675.20 : x
  2. Step 2: Convert to fraction form
    451,636.80/677,455.20 = 283,675.20/x
  3. Step 3: Cross multiply
    451,636.80x = 677,455.20 × 283,675.20
  4. Step 4: Simplify right side
    451,636.80x = 192,177,239,351.04
  5. Step 5: Solve for x
    x = 192,177,239,351.04/451,636.80
  6. Step 6: Final answer
    x = 425,512.80

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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.