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Finding the Fourth Proportional to 505,736.40, 759,479.40 and 329,026.80

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Solution

The fourth proportional to 505,736.40, 759,479.40 and 329,026.80 is: 494,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,736.40 : 759,479.40 = 329,026.80 : x
  2. Step 2: Convert to fraction form
    505,736.40/759,479.40 = 329,026.80/x
  3. Step 3: Cross multiply
    505,736.40x = 759,479.40 × 329,026.80
  4. Step 4: Simplify right side
    505,736.40x = 249,889,076,647.92
  5. Step 5: Solve for x
    x = 249,889,076,647.92/505,736.40
  6. Step 6: Final answer
    x = 494,109.34

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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.