Home / 455,824.44-628,453.08-312,335.37

Finding the Fourth Proportional to 455,824.44, 628,453.08 and 312,335.37

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Solution

The fourth proportional to 455,824.44, 628,453.08 and 312,335.37 is: 430,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,824.44 : 628,453.08 = 312,335.37 : x
  2. Step 2: Convert to fraction form
    455,824.44/628,453.08 = 312,335.37/x
  3. Step 3: Cross multiply
    455,824.44x = 628,453.08 × 312,335.37
  4. Step 4: Simplify right side
    455,824.44x = 196,288,125,269.44
  5. Step 5: Solve for x
    x = 196,288,125,269.44/455,824.44
  6. Step 6: Final answer
    x = 430,622.20

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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.