Home / 476,961.90-658,063.89-285,905.58

Finding the Fourth Proportional to 476,961.90, 658,063.89 and 285,905.58

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Solution

The fourth proportional to 476,961.90, 658,063.89 and 285,905.58 is: 394,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,961.90 : 658,063.89 = 285,905.58 : x
  2. Step 2: Convert to fraction form
    476,961.90/658,063.89 = 285,905.58/x
  3. Step 3: Cross multiply
    476,961.90x = 658,063.89 × 285,905.58
  4. Step 4: Simplify right side
    476,961.90x = 188,144,138,147.51
  5. Step 5: Solve for x
    x = 188,144,138,147.51/476,961.90
  6. Step 6: Final answer
    x = 394,463.66

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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.