Home / 1,216,325.26-1,678,250.46-726,199.57

Finding the Fourth Proportional to 1,216,325.26, 1,678,250.46 and 726,199.57

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Solution

The fourth proportional to 1,216,325.26, 1,678,250.46 and 726,199.57 is: 1,001,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,325.26 : 1,678,250.46 = 726,199.57 : x
  2. Step 2: Convert to fraction form
    1,216,325.26/1,678,250.46 = 726,199.57/x
  3. Step 3: Cross multiply
    1,216,325.26x = 1,678,250.46 × 726,199.57
  4. Step 4: Simplify right side
    1,216,325.26x = 1,218,744,762,404.30
  5. Step 5: Solve for x
    x = 1,218,744,762,404.30/1,216,325.26
  6. Step 6: Final answer
    x = 1,001,989.19

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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.