Finding the Fourth Proportional to 1,284,349.92, 1,772,379.36 and 711,388.32
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Solution
The fourth proportional to 1,284,349.92, 1,772,379.36 and 711,388.32 is: 981,702.85
Step by Step Solution
- Step 1: Write the proportion equation
1,284,349.92 : 1,772,379.36 = 711,388.32 : x - Step 2: Convert to fraction form
1,284,349.92/1,772,379.36 = 711,388.32/x - Step 3: Cross multiply
1,284,349.92x = 1,772,379.36 × 711,388.32 - Step 4: Simplify right side
1,284,349.92x = 1,260,849,975,313.08 - Step 5: Solve for x
x = 1,260,849,975,313.08/1,284,349.92 - Step 6: Final answer
x = 981,702.85
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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.