Home / 1,112,522.26-1,535,215.53-629,188.78

Finding the Fourth Proportional to 1,112,522.26, 1,535,215.53 and 629,188.78

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Solution

The fourth proportional to 1,112,522.26, 1,535,215.53 and 629,188.78 is: 868,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,522.26 : 1,535,215.53 = 629,188.78 : x
  2. Step 2: Convert to fraction form
    1,112,522.26/1,535,215.53 = 629,188.78/x
  3. Step 3: Cross multiply
    1,112,522.26x = 1,535,215.53 × 629,188.78
  4. Step 4: Simplify right side
    1,112,522.26x = 965,940,386,357.75
  5. Step 5: Solve for x
    x = 965,940,386,357.75/1,112,522.26
  6. Step 6: Final answer
    x = 868,243.65

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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.