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Finding the Fourth Proportional to 479,641.96, 661,906.88 and 264,782.28

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Solution

The fourth proportional to 479,641.96, 661,906.88 and 264,782.28 is: 365,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,641.96 : 661,906.88 = 264,782.28 : x
  2. Step 2: Convert to fraction form
    479,641.96/661,906.88 = 264,782.28/x
  3. Step 3: Cross multiply
    479,641.96x = 661,906.88 × 264,782.28
  4. Step 4: Simplify right side
    479,641.96x = 175,261,212,834.09
  5. Step 5: Solve for x
    x = 175,261,212,834.09/479,641.96
  6. Step 6: Final answer
    x = 365,400.08

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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.