Home / 603,839.34-904,955.36-319,469.27

Finding the Fourth Proportional to 603,839.34, 904,955.36 and 319,469.27

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Solution

The fourth proportional to 603,839.34, 904,955.36 and 319,469.27 is: 478,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,839.34 : 904,955.36 = 319,469.27 : x
  2. Step 2: Convert to fraction form
    603,839.34/904,955.36 = 319,469.27/x
  3. Step 3: Cross multiply
    603,839.34x = 904,955.36 × 319,469.27
  4. Step 4: Simplify right side
    603,839.34x = 289,105,422,119.66
  5. Step 5: Solve for x
    x = 289,105,422,119.66/603,839.34
  6. Step 6: Final answer
    x = 478,778.71

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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.