Finding the Fourth Proportional to 665,868.79, 918,885.09 and 364,062.79
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Solution
The fourth proportional to 665,868.79, 918,885.09 and 364,062.79 is: 502,399.08
Step by Step Solution
- Step 1: Write the proportion equation
665,868.79 : 918,885.09 = 364,062.79 : x - Step 2: Convert to fraction form
665,868.79/918,885.09 = 364,062.79/x - Step 3: Cross multiply
665,868.79x = 918,885.09 × 364,062.79 - Step 4: Simplify right side
665,868.79x = 334,531,869,554.80 - Step 5: Solve for x
x = 334,531,869,554.80/665,868.79 - Step 6: Final answer
x = 502,399.08
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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.