Finding the Fourth Proportional to 442,914.70, 664,372.05 and 307,612.30
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Solution
The fourth proportional to 442,914.70, 664,372.05 and 307,612.30 is: 461,418.45
Step by Step Solution
- Step 1: Write the proportion equation
442,914.70 : 664,372.05 = 307,612.30 : x - Step 2: Convert to fraction form
442,914.70/664,372.05 = 307,612.30/x - Step 3: Cross multiply
442,914.70x = 664,372.05 × 307,612.30 - Step 4: Simplify right side
442,914.70x = 204,369,014,356.22 - Step 5: Solve for x
x = 204,369,014,356.22/442,914.70 - Step 6: Final answer
x = 461,418.45
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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.