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Finding the Fourth Proportional to 479,644.51, 661,911.54 and 264,786.34

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Solution

The fourth proportional to 479,644.51, 661,911.54 and 264,786.34 is: 365,406.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,644.51 : 661,911.54 = 264,786.34 : x
  2. Step 2: Convert to fraction form
    479,644.51/661,911.54 = 264,786.34/x
  3. Step 3: Cross multiply
    479,644.51x = 661,911.54 × 264,786.34
  4. Step 4: Simplify right side
    479,644.51x = 175,265,134,080.36
  5. Step 5: Solve for x
    x = 175,265,134,080.36/479,644.51
  6. Step 6: Final answer
    x = 365,406.32

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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.