Finding the Fourth Proportional to 716,444.99, 988,694.08 and 394,148.17
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Solution
The fourth proportional to 716,444.99, 988,694.08 and 394,148.17 is: 543,924.47
Step by Step Solution
- Step 1: Write the proportion equation
716,444.99 : 988,694.08 = 394,148.17 : x - Step 2: Convert to fraction form
716,444.99/988,694.08 = 394,148.17/x - Step 3: Cross multiply
716,444.99x = 988,694.08 × 394,148.17 - Step 4: Simplify right side
716,444.99x = 389,691,962,321.83 - Step 5: Solve for x
x = 389,691,962,321.83/716,444.99 - Step 6: Final answer
x = 543,924.47
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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.