Home / 639,615.96-882,631.98-349,169.58

Finding the Fourth Proportional to 639,615.96, 882,631.98 and 349,169.58

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Solution

The fourth proportional to 639,615.96, 882,631.98 and 349,169.58 is: 481,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,615.96 : 882,631.98 = 349,169.58 : x
  2. Step 2: Convert to fraction form
    639,615.96/882,631.98 = 349,169.58/x
  3. Step 3: Cross multiply
    639,615.96x = 882,631.98 × 349,169.58
  4. Step 4: Simplify right side
    639,615.96x = 308,188,237,751.17
  5. Step 5: Solve for x
    x = 308,188,237,751.17/639,615.96
  6. Step 6: Final answer
    x = 481,833.25

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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.