Finding the Fourth Proportional to 716,387.18, 988,593.50 and 394,097.08
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Solution
The fourth proportional to 716,387.18, 988,593.50 and 394,097.08 is: 543,842.52
Step by Step Solution
- Step 1: Write the proportion equation
716,387.18 : 988,593.50 = 394,097.08 : x - Step 2: Convert to fraction form
716,387.18/988,593.50 = 394,097.08/x - Step 3: Cross multiply
716,387.18x = 988,593.50 × 394,097.08 - Step 4: Simplify right side
716,387.18x = 389,601,811,656.98 - Step 5: Solve for x
x = 389,601,811,656.98/716,387.18 - Step 6: Final answer
x = 543,842.52
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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.