Finding the Fourth Proportional to 552,963.30, 763,213.81 and 361,865.97
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Solution
The fourth proportional to 552,963.30, 763,213.81 and 361,865.97 is: 499,456.48
Step by Step Solution
- Step 1: Write the proportion equation
552,963.30 : 763,213.81 = 361,865.97 : x - Step 2: Convert to fraction form
552,963.30/763,213.81 = 361,865.97/x - Step 3: Cross multiply
552,963.30x = 763,213.81 × 361,865.97 - Step 4: Simplify right side
552,963.30x = 276,181,105,673.05 - Step 5: Solve for x
x = 276,181,105,673.05/552,963.30 - Step 6: Final answer
x = 499,456.48
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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.