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Finding the Fourth Proportional to 511,994.20, 767,991.30 and 325,216.60

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Solution

The fourth proportional to 511,994.20, 767,991.30 and 325,216.60 is: 487,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,994.20 : 767,991.30 = 325,216.60 : x
  2. Step 2: Convert to fraction form
    511,994.20/767,991.30 = 325,216.60/x
  3. Step 3: Cross multiply
    511,994.20x = 767,991.30 × 325,216.60
  4. Step 4: Simplify right side
    511,994.20x = 249,763,519,415.58
  5. Step 5: Solve for x
    x = 249,763,519,415.58/511,994.20
  6. Step 6: Final answer
    x = 487,824.90

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1.5x scale

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.