Home / 481,289.85-664,291.53-320,151.69

Finding the Fourth Proportional to 481,289.85, 664,291.53 and 320,151.69

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Solution

The fourth proportional to 481,289.85, 664,291.53 and 320,151.69 is: 441,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,289.85 : 664,291.53 = 320,151.69 : x
  2. Step 2: Convert to fraction form
    481,289.85/664,291.53 = 320,151.69/x
  3. Step 3: Cross multiply
    481,289.85x = 664,291.53 × 320,151.69
  4. Step 4: Simplify right side
    481,289.85x = 212,674,055,982.19
  5. Step 5: Solve for x
    x = 212,674,055,982.19/481,289.85
  6. Step 6: Final answer
    x = 441,883.53

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1.5x scale

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.