Home / 868,491.58-1,300,812.57-667,331.26

Finding the Fourth Proportional to 868,491.58, 1,300,812.57 and 667,331.26

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Solution

The fourth proportional to 868,491.58, 1,300,812.57 and 667,331.26 is: 999,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,491.58 : 1,300,812.57 = 667,331.26 : x
  2. Step 2: Convert to fraction form
    868,491.58/1,300,812.57 = 667,331.26/x
  3. Step 3: Cross multiply
    868,491.58x = 1,300,812.57 × 667,331.26
  4. Step 4: Simplify right side
    868,491.58x = 868,072,891,361.94
  5. Step 5: Solve for x
    x = 868,072,891,361.94/868,491.58
  6. Step 6: Final answer
    x = 999,517.91

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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.