Home / 1,263,267.40-1,743,313.38-690,307.60

Finding the Fourth Proportional to 1,263,267.40, 1,743,313.38 and 690,307.60

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Solution

The fourth proportional to 1,263,267.40, 1,743,313.38 and 690,307.60 is: 952,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,267.40 : 1,743,313.38 = 690,307.60 : x
  2. Step 2: Convert to fraction form
    1,263,267.40/1,743,313.38 = 690,307.60/x
  3. Step 3: Cross multiply
    1,263,267.40x = 1,743,313.38 × 690,307.60
  4. Step 4: Simplify right side
    1,263,267.40x = 1,203,422,475,395.69
  5. Step 5: Solve for x
    x = 1,203,422,475,395.69/1,263,267.40
  6. Step 6: Final answer
    x = 952,626.87

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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.