Home / 1,263,383.12-1,743,469.48-690,423.28

Finding the Fourth Proportional to 1,263,383.12, 1,743,469.48 and 690,423.28

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Solution

The fourth proportional to 1,263,383.12, 1,743,469.48 and 690,423.28 is: 952,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,383.12 : 1,743,469.48 = 690,423.28 : x
  2. Step 2: Convert to fraction form
    1,263,383.12/1,743,469.48 = 690,423.28/x
  3. Step 3: Cross multiply
    1,263,383.12x = 1,743,469.48 × 690,423.28
  4. Step 4: Simplify right side
    1,263,383.12x = 1,203,731,916,961.49
  5. Step 5: Solve for x
    x = 1,203,731,916,961.49/1,263,383.12
  6. Step 6: Final answer
    x = 952,784.55

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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.