Finding the Fourth Proportional to 645,110.08, 890,387.36 and 409,211.37
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Solution
The fourth proportional to 645,110.08, 890,387.36 and 409,211.37 is: 564,797.62
Step by Step Solution
- Step 1: Write the proportion equation
645,110.08 : 890,387.36 = 409,211.37 : x - Step 2: Convert to fraction form
645,110.08/890,387.36 = 409,211.37/x - Step 3: Cross multiply
645,110.08x = 890,387.36 × 409,211.37 - Step 4: Simplify right side
645,110.08x = 364,356,635,185.93 - Step 5: Solve for x
x = 364,356,635,185.93/645,110.08 - Step 6: Final answer
x = 564,797.62
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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.