Home / 639,344.22-882,290.67-352,864.31

Finding the Fourth Proportional to 639,344.22, 882,290.67 and 352,864.31

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Solution

The fourth proportional to 639,344.22, 882,290.67 and 352,864.31 is: 486,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,344.22 : 882,290.67 = 352,864.31 : x
  2. Step 2: Convert to fraction form
    639,344.22/882,290.67 = 352,864.31/x
  3. Step 3: Cross multiply
    639,344.22x = 882,290.67 × 352,864.31
  4. Step 4: Simplify right side
    639,344.22x = 311,328,888,488.99
  5. Step 5: Solve for x
    x = 311,328,888,488.99/639,344.22
  6. Step 6: Final answer
    x = 486,950.34

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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.