Home / 1,383,728.28-2,075,606.37-485,191.67

Finding the Fourth Proportional to 1,383,728.28, 2,075,606.37 and 485,191.67

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Solution

The fourth proportional to 1,383,728.28, 2,075,606.37 and 485,191.67 is: 727,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,728.28 : 2,075,606.37 = 485,191.67 : x
  2. Step 2: Convert to fraction form
    1,383,728.28/2,075,606.37 = 485,191.67/x
  3. Step 3: Cross multiply
    1,383,728.28x = 2,075,606.37 × 485,191.67
  4. Step 4: Simplify right side
    1,383,728.28x = 1,007,066,910,544.91
  5. Step 5: Solve for x
    x = 1,007,066,910,544.91/1,383,728.28
  6. Step 6: Final answer
    x = 727,792.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.