Home / 1,213,224.36-1,674,255.42-669,360.12

Finding the Fourth Proportional to 1,213,224.36, 1,674,255.42 and 669,360.12

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Solution

The fourth proportional to 1,213,224.36, 1,674,255.42 and 669,360.12 is: 923,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,224.36 : 1,674,255.42 = 669,360.12 : x
  2. Step 2: Convert to fraction form
    1,213,224.36/1,674,255.42 = 669,360.12/x
  3. Step 3: Cross multiply
    1,213,224.36x = 1,674,255.42 × 669,360.12
  4. Step 4: Simplify right side
    1,213,224.36x = 1,120,679,808,841.85
  5. Step 5: Solve for x
    x = 1,120,679,808,841.85/1,213,224.36
  6. Step 6: Final answer
    x = 923,720.17

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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.