Home / 591,902.72-816,824.67-319,970.78

Finding the Fourth Proportional to 591,902.72, 816,824.67 and 319,970.78

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Solution

The fourth proportional to 591,902.72, 816,824.67 and 319,970.78 is: 441,559.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,902.72 : 816,824.67 = 319,970.78 : x
  2. Step 2: Convert to fraction form
    591,902.72/816,824.67 = 319,970.78/x
  3. Step 3: Cross multiply
    591,902.72x = 816,824.67 × 319,970.78
  4. Step 4: Simplify right side
    591,902.72x = 261,360,026,783.14
  5. Step 5: Solve for x
    x = 261,360,026,783.14/591,902.72
  6. Step 6: Final answer
    x = 441,559.09

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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.