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Finding the Fourth Proportional to 406,634.20, 609,825.20 and 326,483.39

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Solution

The fourth proportional to 406,634.20, 609,825.20 and 326,483.39 is: 489,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,634.20 : 609,825.20 = 326,483.39 : x
  2. Step 2: Convert to fraction form
    406,634.20/609,825.20 = 326,483.39/x
  3. Step 3: Cross multiply
    406,634.20x = 609,825.20 × 326,483.39
  4. Step 4: Simplify right side
    406,634.20x = 199,097,798,495.57
  5. Step 5: Solve for x
    x = 199,097,798,495.57/406,634.20
  6. Step 6: Final answer
    x = 489,623.84

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1.5x scale

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.