Finding the Fourth Proportional to 554,161.68, 764,727.80 and 312,442.14
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Solution
The fourth proportional to 554,161.68, 764,727.80 and 312,442.14 is: 431,161.52
Step by Step Solution
- Step 1: Write the proportion equation
554,161.68 : 764,727.80 = 312,442.14 : x - Step 2: Convert to fraction form
554,161.68/764,727.80 = 312,442.14/x - Step 3: Cross multiply
554,161.68x = 764,727.80 × 312,442.14 - Step 4: Simplify right side
554,161.68x = 238,933,190,349.49 - Step 5: Solve for x
x = 238,933,190,349.49/554,161.68 - Step 6: Final answer
x = 431,161.52
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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.