Finding the Fourth Proportional to 919,803.74, 1,269,388.64 and 511,904.23
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Solution
The fourth proportional to 919,803.74, 1,269,388.64 and 511,904.23 is: 706,460.94
Step by Step Solution
- Step 1: Write the proportion equation
919,803.74 : 1,269,388.64 = 511,904.23 : x - Step 2: Convert to fraction form
919,803.74/1,269,388.64 = 511,904.23/x - Step 3: Cross multiply
919,803.74x = 1,269,388.64 × 511,904.23 - Step 4: Simplify right side
919,803.74x = 649,805,412,436.24 - Step 5: Solve for x
x = 649,805,412,436.24/919,803.74 - Step 6: Final answer
x = 706,460.94
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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.