Finding the Fourth Proportional to 497,283.09, 686,253.45 and 290,563.62
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Solution
The fourth proportional to 497,283.09, 686,253.45 and 290,563.62 is: 400,979.42
Step by Step Solution
- Step 1: Write the proportion equation
497,283.09 : 686,253.45 = 290,563.62 : x - Step 2: Convert to fraction form
497,283.09/686,253.45 = 290,563.62/x - Step 3: Cross multiply
497,283.09x = 686,253.45 × 290,563.62 - Step 4: Simplify right side
497,283.09x = 199,400,286,669.49 - Step 5: Solve for x
x = 199,400,286,669.49/497,283.09 - Step 6: Final answer
x = 400,979.42
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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.