Home / 862,455.40-1,296,015.90-759,812.20

Finding the Fourth Proportional to 862,455.40, 1,296,015.90 and 759,812.20

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Solution

The fourth proportional to 862,455.40, 1,296,015.90 and 759,812.20 is: 1,141,773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,455.40 : 1,296,015.90 = 759,812.20 : x
  2. Step 2: Convert to fraction form
    862,455.40/1,296,015.90 = 759,812.20/x
  3. Step 3: Cross multiply
    862,455.40x = 1,296,015.90 × 759,812.20
  4. Step 4: Simplify right side
    862,455.40x = 984,728,692,213.98
  5. Step 5: Solve for x
    x = 984,728,692,213.98/862,455.40
  6. Step 6: Final answer
    x = 1,141,773.47

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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.