Finding the Fourth Proportional to 889,412.64, 1,227,391.43 and 481,518.78
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Solution
The fourth proportional to 889,412.64, 1,227,391.43 and 481,518.78 is: 664,496.99
Step by Step Solution
- Step 1: Write the proportion equation
889,412.64 : 1,227,391.43 = 481,518.78 : x - Step 2: Convert to fraction form
889,412.64/1,227,391.43 = 481,518.78/x - Step 3: Cross multiply
889,412.64x = 1,227,391.43 × 481,518.78 - Step 4: Simplify right side
889,412.64x = 591,012,023,956.06 - Step 5: Solve for x
x = 591,012,023,956.06/889,412.64 - Step 6: Final answer
x = 664,496.99
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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.