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Finding the Fourth Proportional to 455,670.64, 628,771.44 and 264,653.20

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Solution

The fourth proportional to 455,670.64, 628,771.44 and 264,653.20 is: 365,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,670.64 : 628,771.44 = 264,653.20 : x
  2. Step 2: Convert to fraction form
    455,670.64/628,771.44 = 264,653.20/x
  3. Step 3: Cross multiply
    455,670.64x = 628,771.44 × 264,653.20
  4. Step 4: Simplify right side
    455,670.64x = 166,406,373,664.61
  5. Step 5: Solve for x
    x = 166,406,373,664.61/455,670.64
  6. Step 6: Final answer
    x = 365,190.03

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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.