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Finding the Fourth Proportional to 491,392.56, 677,782.44 and 300,499.88

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Solution

The fourth proportional to 491,392.56, 677,782.44 and 300,499.88 is: 414,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,392.56 : 677,782.44 = 300,499.88 : x
  2. Step 2: Convert to fraction form
    491,392.56/677,782.44 = 300,499.88/x
  3. Step 3: Cross multiply
    491,392.56x = 677,782.44 × 300,499.88
  4. Step 4: Simplify right side
    491,392.56x = 203,673,541,886.11
  5. Step 5: Solve for x
    x = 203,673,541,886.11/491,392.56
  6. Step 6: Final answer
    x = 414,482.35

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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.