Finding the Fourth Proportional to 3,988,276.35, 5,981,159.68 and 1,291,975.99
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Solution
The fourth proportional to 3,988,276.35, 5,981,159.68 and 1,291,975.99 is: 1,937,557.48
Step by Step Solution
- Step 1: Write the proportion equation
3,988,276.35 : 5,981,159.68 = 1,291,975.99 : x - Step 2: Convert to fraction form
3,988,276.35/5,981,159.68 = 1,291,975.99/x - Step 3: Cross multiply
3,988,276.35x = 5,981,159.68 × 1,291,975.99 - Step 4: Simplify right side
3,988,276.35x = 7,727,514,680,733.24 - Step 5: Solve for x
x = 7,727,514,680,733.24/3,988,276.35 - Step 6: Final answer
x = 1,937,557.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.