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Finding the Fourth Proportional to 496,857.12, 685,664.40 and 270,504

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Solution

The fourth proportional to 496,857.12, 685,664.40 and 270,504 is: 373,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,857.12 : 685,664.40 = 270,504 : x
  2. Step 2: Convert to fraction form
    496,857.12/685,664.40 = 270,504/x
  3. Step 3: Cross multiply
    496,857.12x = 685,664.40 × 270,504
  4. Step 4: Simplify right side
    496,857.12x = 185,474,962,857.60
  5. Step 5: Solve for x
    x = 185,474,962,857.60/496,857.12
  6. Step 6: Final answer
    x = 373,296.38

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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.