Home / 1,296,116.40-1,942,619.40-664,705.20

Finding the Fourth Proportional to 1,296,116.40, 1,942,619.40 and 664,705.20

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Solution

The fourth proportional to 1,296,116.40, 1,942,619.40 and 664,705.20 is: 996,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,116.40 : 1,942,619.40 = 664,705.20 : x
  2. Step 2: Convert to fraction form
    1,296,116.40/1,942,619.40 = 664,705.20/x
  3. Step 3: Cross multiply
    1,296,116.40x = 1,942,619.40 × 664,705.20
  4. Step 4: Simplify right side
    1,296,116.40x = 1,291,269,216,800.88
  5. Step 5: Solve for x
    x = 1,291,269,216,800.88/1,296,116.40
  6. Step 6: Final answer
    x = 996,260.23

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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.