Finding the Fourth Proportional to 711,394.08, 981,755.30 and 409,685.28
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Solution
The fourth proportional to 711,394.08, 981,755.30 and 409,685.28 is: 565,383.81
Step by Step Solution
- Step 1: Write the proportion equation
711,394.08 : 981,755.30 = 409,685.28 : x - Step 2: Convert to fraction form
711,394.08/981,755.30 = 409,685.28/x - Step 3: Cross multiply
711,394.08x = 981,755.30 × 409,685.28 - Step 4: Simplify right side
711,394.08x = 402,210,694,971.98 - Step 5: Solve for x
x = 402,210,694,971.98/711,394.08 - Step 6: Final answer
x = 565,383.81
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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.