Finding the Fourth Proportional to 638,456.24, 881,075.64 and 351,986.58
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Solution
The fourth proportional to 638,456.24, 881,075.64 and 351,986.58 is: 485,744.80
Step by Step Solution
- Step 1: Write the proportion equation
638,456.24 : 881,075.64 = 351,986.58 : x - Step 2: Convert to fraction form
638,456.24/881,075.64 = 351,986.58/x - Step 3: Cross multiply
638,456.24x = 881,075.64 × 351,986.58 - Step 4: Simplify right side
638,456.24x = 310,126,801,244.91 - Step 5: Solve for x
x = 310,126,801,244.91/638,456.24 - Step 6: Final answer
x = 485,744.80
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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.