Finding the Fourth Proportional to 554,154.05, 764,717.29 and 312,434.51
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Solution
The fourth proportional to 554,154.05, 764,717.29 and 312,434.51 is: 431,150.99
Step by Step Solution
- Step 1: Write the proportion equation
554,154.05 : 764,717.29 = 312,434.51 : x - Step 2: Convert to fraction form
554,154.05/764,717.29 = 312,434.51/x - Step 3: Cross multiply
554,154.05x = 764,717.29 × 312,434.51 - Step 4: Simplify right side
554,154.05x = 238,924,067,185.01 - Step 5: Solve for x
x = 238,924,067,185.01/554,154.05 - Step 6: Final answer
x = 431,150.99
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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.