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Finding the Fourth Proportional to 422,907.80, 633,195.30 and 329,595.80

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Solution

The fourth proportional to 422,907.80, 633,195.30 and 329,595.80 is: 493,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,907.80 : 633,195.30 = 329,595.80 : x
  2. Step 2: Convert to fraction form
    422,907.80/633,195.30 = 329,595.80/x
  3. Step 3: Cross multiply
    422,907.80x = 633,195.30 × 329,595.80
  4. Step 4: Simplify right side
    422,907.80x = 208,698,511,459.74
  5. Step 5: Solve for x
    x = 208,698,511,459.74/422,907.80
  6. Step 6: Final answer
    x = 493,484.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.