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Finding the Fourth Proportional to 406,172.48, 608,198.88 and 326,853.44

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Solution

The fourth proportional to 406,172.48, 608,198.88 and 326,853.44 is: 489,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,172.48 : 608,198.88 = 326,853.44 : x
  2. Step 2: Convert to fraction form
    406,172.48/608,198.88 = 326,853.44/x
  3. Step 3: Cross multiply
    406,172.48x = 608,198.88 × 326,853.44
  4. Step 4: Simplify right side
    406,172.48x = 198,791,896,132.15
  5. Step 5: Solve for x
    x = 198,791,896,132.15/406,172.48
  6. Step 6: Final answer
    x = 489,427.29

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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.