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Finding the Fourth Proportional to 455,355.06, 628,947.95 and 341,144.45

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Solution

The fourth proportional to 455,355.06, 628,947.95 and 341,144.45 is: 471,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,355.06 : 628,947.95 = 341,144.45 : x
  2. Step 2: Convert to fraction form
    455,355.06/628,947.95 = 341,144.45/x
  3. Step 3: Cross multiply
    455,355.06x = 628,947.95 × 341,144.45
  4. Step 4: Simplify right side
    455,355.06x = 214,562,102,481.38
  5. Step 5: Solve for x
    x = 214,562,102,481.38/455,355.06
  6. Step 6: Final answer
    x = 471,197.36

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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.