Home / 1,213,225.36-1,674,256.80-669,361.12

Finding the Fourth Proportional to 1,213,225.36, 1,674,256.80 and 669,361.12

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Solution

The fourth proportional to 1,213,225.36, 1,674,256.80 and 669,361.12 is: 923,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,225.36 : 1,674,256.80 = 669,361.12 : x
  2. Step 2: Convert to fraction form
    1,213,225.36/1,674,256.80 = 669,361.12/x
  3. Step 3: Cross multiply
    1,213,225.36x = 1,674,256.80 × 669,361.12
  4. Step 4: Simplify right side
    1,213,225.36x = 1,120,682,406,815.62
  5. Step 5: Solve for x
    x = 1,120,682,406,815.62/1,213,225.36
  6. Step 6: Final answer
    x = 923,721.55

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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.