Home / 1,216,323.26-1,678,247.70-726,197.57

Finding the Fourth Proportional to 1,216,323.26, 1,678,247.70 and 726,197.57

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Solution

The fourth proportional to 1,216,323.26, 1,678,247.70 and 726,197.57 is: 1,001,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,323.26 : 1,678,247.70 = 726,197.57 : x
  2. Step 2: Convert to fraction form
    1,216,323.26/1,678,247.70 = 726,197.57/x
  3. Step 3: Cross multiply
    1,216,323.26x = 1,678,247.70 × 726,197.57
  4. Step 4: Simplify right side
    1,216,323.26x = 1,218,739,401,598.09
  5. Step 5: Solve for x
    x = 1,218,739,401,598.09/1,216,323.26
  6. Step 6: Final answer
    x = 1,001,986.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.