Home / 639,365.98-882,262.23-352,867.57

Finding the Fourth Proportional to 639,365.98, 882,262.23 and 352,867.57

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Solution

The fourth proportional to 639,365.98, 882,262.23 and 352,867.57 is: 486,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,365.98 : 882,262.23 = 352,867.57 : x
  2. Step 2: Convert to fraction form
    639,365.98/882,262.23 = 352,867.57/x
  3. Step 3: Cross multiply
    639,365.98x = 882,262.23 × 352,867.57
  4. Step 4: Simplify right side
    639,365.98x = 311,321,724,791.57
  5. Step 5: Solve for x
    x = 311,321,724,791.57/639,365.98
  6. Step 6: Final answer
    x = 486,922.57

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1.5x scale

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.