Home / 347,617.09-479,463.72-319,028.87

Finding the Fourth Proportional to 347,617.09, 479,463.72 and 319,028.87

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Solution

The fourth proportional to 347,617.09, 479,463.72 and 319,028.87 is: 440,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,617.09 : 479,463.72 = 319,028.87 : x
  2. Step 2: Convert to fraction form
    347,617.09/479,463.72 = 319,028.87/x
  3. Step 3: Cross multiply
    347,617.09x = 479,463.72 × 319,028.87
  4. Step 4: Simplify right side
    347,617.09x = 152,962,766,400.28
  5. Step 5: Solve for x
    x = 152,962,766,400.28/347,617.09
  6. Step 6: Final answer
    x = 440,032.36

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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.