Finding the Fourth Proportional to 442,913.70, 664,370.55 and 307,611.30
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Solution
The fourth proportional to 442,913.70, 664,370.55 and 307,611.30 is: 461,416.95
Step by Step Solution
- Step 1: Write the proportion equation
442,913.70 : 664,370.55 = 307,611.30 : x - Step 2: Convert to fraction form
442,913.70/664,370.55 = 307,611.30/x - Step 3: Cross multiply
442,913.70x = 664,370.55 × 307,611.30 - Step 4: Simplify right side
442,913.70x = 204,367,888,567.22 - Step 5: Solve for x
x = 204,367,888,567.22/442,913.70 - Step 6: Final answer
x = 461,416.95
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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.