Home / 639,172.35-882,036.68-352,692.63

Finding the Fourth Proportional to 639,172.35, 882,036.68 and 352,692.63

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Solution

The fourth proportional to 639,172.35, 882,036.68 and 352,692.63 is: 486,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,172.35 : 882,036.68 = 352,692.63 : x
  2. Step 2: Convert to fraction form
    639,172.35/882,036.68 = 352,692.63/x
  3. Step 3: Cross multiply
    639,172.35x = 882,036.68 × 352,692.63
  4. Step 4: Simplify right side
    639,172.35x = 311,087,834,662.21
  5. Step 5: Solve for x
    x = 311,087,834,662.21/639,172.35
  6. Step 6: Final answer
    x = 486,704.15

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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.