Finding the Fourth Proportional to 821,801.70, 1,232,057.39 and 522,226.44
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Solution
The fourth proportional to 821,801.70, 1,232,057.39 and 522,226.44 is: 782,929.68
Step by Step Solution
- Step 1: Write the proportion equation
821,801.70 : 1,232,057.39 = 522,226.44 : x - Step 2: Convert to fraction form
821,801.70/1,232,057.39 = 522,226.44/x - Step 3: Cross multiply
821,801.70x = 1,232,057.39 × 522,226.44 - Step 4: Simplify right side
821,801.70x = 643,412,942,044.26 - Step 5: Solve for x
x = 643,412,942,044.26/821,801.70 - Step 6: Final answer
x = 782,929.68
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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.