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Finding the Fourth Proportional to 479,507.79, 661,717.49 and 264,647.85

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Solution

The fourth proportional to 479,507.79, 661,717.49 and 264,647.85 is: 365,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,507.79 : 661,717.49 = 264,647.85 : x
  2. Step 2: Convert to fraction form
    479,507.79/661,717.49 = 264,647.85/x
  3. Step 3: Cross multiply
    479,507.79x = 661,717.49 × 264,647.85
  4. Step 4: Simplify right side
    479,507.79x = 175,122,111,035.90
  5. Step 5: Solve for x
    x = 175,122,111,035.90/479,507.79
  6. Step 6: Final answer
    x = 365,212.23

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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.