Home / 639,366.48-882,262.92-352,868.06

Finding the Fourth Proportional to 639,366.48, 882,262.92 and 352,868.06

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Solution

The fourth proportional to 639,366.48, 882,262.92 and 352,868.06 is: 486,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,366.48 : 882,262.92 = 352,868.06 : x
  2. Step 2: Convert to fraction form
    639,366.48/882,262.92 = 352,868.06/x
  3. Step 3: Cross multiply
    639,366.48x = 882,262.92 × 352,868.06
  4. Step 4: Simplify right side
    639,366.48x = 311,322,404,990.34
  5. Step 5: Solve for x
    x = 311,322,404,990.34/639,366.48
  6. Step 6: Final answer
    x = 486,923.25

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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.