Finding the Fourth Proportional to 400,782.97, 552,814.49 and 257,724.01
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Solution
The fourth proportional to 400,782.97, 552,814.49 and 257,724.01 is: 355,488.07
Step by Step Solution
- Step 1: Write the proportion equation
400,782.97 : 552,814.49 = 257,724.01 : x - Step 2: Convert to fraction form
400,782.97/552,814.49 = 257,724.01/x - Step 3: Cross multiply
400,782.97x = 552,814.49 × 257,724.01 - Step 4: Simplify right side
400,782.97x = 142,473,563,096.21 - Step 5: Solve for x
x = 142,473,563,096.21/400,782.97 - Step 6: Final answer
x = 355,488.07
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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.