Home / 639,365.90-882,262.13-352,867.49

Finding the Fourth Proportional to 639,365.90, 882,262.13 and 352,867.49

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Solution

The fourth proportional to 639,365.90, 882,262.13 and 352,867.49 is: 486,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,365.90 : 882,262.13 = 352,867.49 : x
  2. Step 2: Convert to fraction form
    639,365.90/882,262.13 = 352,867.49/x
  3. Step 3: Cross multiply
    639,365.90x = 882,262.13 × 352,867.49
  4. Step 4: Simplify right side
    639,365.90x = 311,321,617,159.51
  5. Step 5: Solve for x
    x = 311,321,617,159.51/639,365.90
  6. Step 6: Final answer
    x = 486,922.46

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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.