Home / 864,651.30-1,296,976.95-812,163.30

Finding the Fourth Proportional to 864,651.30, 1,296,976.95 and 812,163.30

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Solution

The fourth proportional to 864,651.30, 1,296,976.95 and 812,163.30 is: 1,218,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,651.30 : 1,296,976.95 = 812,163.30 : x
  2. Step 2: Convert to fraction form
    864,651.30/1,296,976.95 = 812,163.30/x
  3. Step 3: Cross multiply
    864,651.30x = 1,296,976.95 × 812,163.30
  4. Step 4: Simplify right side
    864,651.30x = 1,053,357,079,735.94
  5. Step 5: Solve for x
    x = 1,053,357,079,735.94/864,651.30
  6. Step 6: Final answer
    x = 1,218,244.95

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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.