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Finding the Fourth Proportional to 479,436.80, 661,625.60 and 264,582.40

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Solution

The fourth proportional to 479,436.80, 661,625.60 and 264,582.40 is: 365,125.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,436.80 : 661,625.60 = 264,582.40 : x
  2. Step 2: Convert to fraction form
    479,436.80/661,625.60 = 264,582.40/x
  3. Step 3: Cross multiply
    479,436.80x = 661,625.60 × 264,582.40
  4. Step 4: Simplify right side
    479,436.80x = 175,054,489,149.44
  5. Step 5: Solve for x
    x = 175,054,489,149.44/479,436.80
  6. Step 6: Final answer
    x = 365,125.27

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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.