Finding the Fourth Proportional to 521,243.68, 719,393.64 and 330,274.96
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Solution
The fourth proportional to 521,243.68, 719,393.64 and 330,274.96 is: 455,828.46
Step by Step Solution
- Step 1: Write the proportion equation
521,243.68 : 719,393.64 = 330,274.96 : x - Step 2: Convert to fraction form
521,243.68/719,393.64 = 330,274.96/x - Step 3: Cross multiply
521,243.68x = 719,393.64 × 330,274.96 - Step 4: Simplify right side
521,243.68x = 237,597,705,675.25 - Step 5: Solve for x
x = 237,597,705,675.25/521,243.68 - Step 6: Final answer
x = 455,828.46
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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.