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Finding the Fourth Proportional to 455,060.49, 628,108.39 and 264,135.39

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Solution

The fourth proportional to 455,060.49, 628,108.39 and 264,135.39 is: 364,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,060.49 : 628,108.39 = 264,135.39 : x
  2. Step 2: Convert to fraction form
    455,060.49/628,108.39 = 264,135.39/x
  3. Step 3: Cross multiply
    455,060.49x = 628,108.39 × 264,135.39
  4. Step 4: Simplify right side
    455,060.49x = 165,905,654,554.92
  5. Step 5: Solve for x
    x = 165,905,654,554.92/455,060.49
  6. Step 6: Final answer
    x = 364,579.34

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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.