Finding the Fourth Proportional to 763,723.36, 1,053,908.76 and 424,213.12
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Solution
The fourth proportional to 763,723.36, 1,053,908.76 and 424,213.12 is: 585,397.73
Step by Step Solution
- Step 1: Write the proportion equation
763,723.36 : 1,053,908.76 = 424,213.12 : x - Step 2: Convert to fraction form
763,723.36/1,053,908.76 = 424,213.12/x - Step 3: Cross multiply
763,723.36x = 1,053,908.76 × 424,213.12 - Step 4: Simplify right side
763,723.36x = 447,081,923,274.93 - Step 5: Solve for x
x = 447,081,923,274.93/763,723.36 - Step 6: Final answer
x = 585,397.73
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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.