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Finding the Fourth Proportional to 511,621.44, 767,089.77 and 245,236.65

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Solution

The fourth proportional to 511,621.44, 767,089.77 and 245,236.65 is: 367,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,621.44 : 767,089.77 = 245,236.65 : x
  2. Step 2: Convert to fraction form
    511,621.44/767,089.77 = 245,236.65/x
  3. Step 3: Cross multiply
    511,621.44x = 767,089.77 × 245,236.65
  4. Step 4: Simplify right side
    511,621.44x = 188,118,525,444.07
  5. Step 5: Solve for x
    x = 188,118,525,444.07/511,621.44
  6. Step 6: Final answer
    x = 367,690.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.