Finding the Fourth Proportional to 621,732.68, 857,991.14 and 353,460.68
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Solution
The fourth proportional to 621,732.68, 857,991.14 and 353,460.68 is: 487,775.76
Step by Step Solution
- Step 1: Write the proportion equation
621,732.68 : 857,991.14 = 353,460.68 : x - Step 2: Convert to fraction form
621,732.68/857,991.14 = 353,460.68/x - Step 3: Cross multiply
621,732.68x = 857,991.14 × 353,460.68 - Step 4: Simplify right side
621,732.68x = 303,266,131,778.38 - Step 5: Solve for x
x = 303,266,131,778.38/621,732.68 - Step 6: Final answer
x = 487,775.76
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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.