Home / 690,571.85-1,035,855.54-311,048.37

Finding the Fourth Proportional to 690,571.85, 1,035,855.54 and 311,048.37

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Solution

The fourth proportional to 690,571.85, 1,035,855.54 and 311,048.37 is: 466,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,571.85 : 1,035,855.54 = 311,048.37 : x
  2. Step 2: Convert to fraction form
    690,571.85/1,035,855.54 = 311,048.37/x
  3. Step 3: Cross multiply
    690,571.85x = 1,035,855.54 × 311,048.37
  4. Step 4: Simplify right side
    690,571.85x = 322,201,177,272.47
  5. Step 5: Solve for x
    x = 322,201,177,272.47/690,571.85
  6. Step 6: Final answer
    x = 466,571.55

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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.