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Finding the Fourth Proportional to 451,605.60, 677,408.40 and 448,495.20

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Solution

The fourth proportional to 451,605.60, 677,408.40 and 448,495.20 is: 672,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,605.60 : 677,408.40 = 448,495.20 : x
  2. Step 2: Convert to fraction form
    451,605.60/677,408.40 = 448,495.20/x
  3. Step 3: Cross multiply
    451,605.60x = 677,408.40 × 448,495.20
  4. Step 4: Simplify right side
    451,605.60x = 303,814,415,839.68
  5. Step 5: Solve for x
    x = 303,814,415,839.68/451,605.60
  6. Step 6: Final answer
    x = 672,742.80

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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.