Finding the Fourth Proportional to 838,783.09, 1,157,553.44 and 476,240.68
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Solution
The fourth proportional to 838,783.09, 1,157,553.44 and 476,240.68 is: 657,230.75
Step by Step Solution
- Step 1: Write the proportion equation
838,783.09 : 1,157,553.44 = 476,240.68 : x - Step 2: Convert to fraction form
838,783.09/1,157,553.44 = 476,240.68/x - Step 3: Cross multiply
838,783.09x = 1,157,553.44 × 476,240.68 - Step 4: Simplify right side
838,783.09x = 551,274,037,401.94 - Step 5: Solve for x
x = 551,274,037,401.94/838,783.09 - Step 6: Final answer
x = 657,230.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.