Finding the Fourth Proportional to 990,342.72, 1,366,705.74 and 560,613.96
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Solution
The fourth proportional to 990,342.72, 1,366,705.74 and 560,613.96 is: 773,665.82
Step by Step Solution
- Step 1: Write the proportion equation
990,342.72 : 1,366,705.74 = 560,613.96 : x - Step 2: Convert to fraction form
990,342.72/1,366,705.74 = 560,613.96/x - Step 3: Cross multiply
990,342.72x = 1,366,705.74 × 560,613.96 - Step 4: Simplify right side
990,342.72x = 766,194,317,056.13 - Step 5: Solve for x
x = 766,194,317,056.13/990,342.72 - Step 6: Final answer
x = 773,665.82
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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.