Home / 1,015,991.64-1,520,997.80-678,194.42

Finding the Fourth Proportional to 1,015,991.64, 1,520,997.80 and 678,194.42

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Solution

The fourth proportional to 1,015,991.64, 1,520,997.80 and 678,194.42 is: 1,015,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,991.64 : 1,520,997.80 = 678,194.42 : x
  2. Step 2: Convert to fraction form
    1,015,991.64/1,520,997.80 = 678,194.42/x
  3. Step 3: Cross multiply
    1,015,991.64x = 1,520,997.80 × 678,194.42
  4. Step 4: Simplify right side
    1,015,991.64x = 1,031,532,209,796.32
  5. Step 5: Solve for x
    x = 1,031,532,209,796.32/1,015,991.64
  6. Step 6: Final answer
    x = 1,015,295.96

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