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Finding the Fourth Proportional to 491,495.64, 677,914.58 and 328,069.74

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Solution

The fourth proportional to 491,495.64, 677,914.58 and 328,069.74 is: 452,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,495.64 : 677,914.58 = 328,069.74 : x
  2. Step 2: Convert to fraction form
    491,495.64/677,914.58 = 328,069.74/x
  3. Step 3: Cross multiply
    491,495.64x = 677,914.58 × 328,069.74
  4. Step 4: Simplify right side
    491,495.64x = 222,403,262,709.20
  5. Step 5: Solve for x
    x = 222,403,262,709.20/491,495.64
  6. Step 6: Final answer
    x = 452,503.03

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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.