Finding the Fourth Proportional to 665,991.68, 919,049.84 and 364,179.20
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Solution
The fourth proportional to 665,991.68, 919,049.84 and 364,179.20 is: 502,557.08
Step by Step Solution
- Step 1: Write the proportion equation
665,991.68 : 919,049.84 = 364,179.20 : x - Step 2: Convert to fraction form
665,991.68/919,049.84 = 364,179.20/x - Step 3: Cross multiply
665,991.68x = 919,049.84 × 364,179.20 - Step 4: Simplify right side
665,991.68x = 334,698,829,075.18 - Step 5: Solve for x
x = 334,698,829,075.18/665,991.68 - Step 6: Final answer
x = 502,557.08
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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.