Finding the Fourth Proportional to 711,391.08, 981,751.14 and 409,682.28
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Solution
The fourth proportional to 711,391.08, 981,751.14 and 409,682.28 is: 565,379.66
Step by Step Solution
- Step 1: Write the proportion equation
711,391.08 : 981,751.14 = 409,682.28 : x - Step 2: Convert to fraction form
711,391.08/981,751.14 = 409,682.28/x - Step 3: Cross multiply
711,391.08x = 981,751.14 × 409,682.28 - Step 4: Simplify right side
711,391.08x = 402,206,045,427.80 - Step 5: Solve for x
x = 402,206,045,427.80/711,391.08 - Step 6: Final answer
x = 565,379.66
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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.