Home / 455,112.09-628,290.78-332,466.78

Finding the Fourth Proportional to 455,112.09, 628,290.78 and 332,466.78

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Solution

The fourth proportional to 455,112.09, 628,290.78 and 332,466.78 is: 458,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,112.09 : 628,290.78 = 332,466.78 : x
  2. Step 2: Convert to fraction form
    455,112.09/628,290.78 = 332,466.78/x
  3. Step 3: Cross multiply
    455,112.09x = 628,290.78 × 332,466.78
  4. Step 4: Simplify right side
    455,112.09x = 208,885,810,105.49
  5. Step 5: Solve for x
    x = 208,885,810,105.49/455,112.09
  6. Step 6: Final answer
    x = 458,976.62

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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.