Finding the Fourth Proportional to 690,274.20, 952,392.42 and 403,864.68
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Solution
The fourth proportional to 690,274.20, 952,392.42 and 403,864.68 is: 557,224.45
Step by Step Solution
- Step 1: Write the proportion equation
690,274.20 : 952,392.42 = 403,864.68 : x - Step 2: Convert to fraction form
690,274.20/952,392.42 = 403,864.68/x - Step 3: Cross multiply
690,274.20x = 952,392.42 × 403,864.68 - Step 4: Simplify right side
690,274.20x = 384,637,659,937.73 - Step 5: Solve for x
x = 384,637,659,937.73/690,274.20 - Step 6: Final answer
x = 557,224.45
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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.