Finding the Fourth Proportional to 478,663.49, 660,553.45 and 263,803.09
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Solution
The fourth proportional to 478,663.49, 660,553.45 and 263,803.09 is: 364,047.07
Step by Step Solution
- Step 1: Write the proportion equation
478,663.49 : 660,553.45 = 263,803.09 : x - Step 2: Convert to fraction form
478,663.49/660,553.45 = 263,803.09/x - Step 3: Cross multiply
478,663.49x = 660,553.45 × 263,803.09 - Step 4: Simplify right side
478,663.49x = 174,256,041,220.16 - Step 5: Solve for x
x = 174,256,041,220.16/478,663.49 - Step 6: Final answer
x = 364,047.07
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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.