Finding the Fourth Proportional to 659,799.84, 910,251.36 and 445,007.28
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Solution
The fourth proportional to 659,799.84, 910,251.36 and 445,007.28 is: 613,926.31
Step by Step Solution
- Step 1: Write the proportion equation
659,799.84 : 910,251.36 = 445,007.28 : x - Step 2: Convert to fraction form
659,799.84/910,251.36 = 445,007.28/x - Step 3: Cross multiply
659,799.84x = 910,251.36 × 445,007.28 - Step 4: Simplify right side
659,799.84x = 405,068,481,829.90 - Step 5: Solve for x
x = 405,068,481,829.90/659,799.84 - Step 6: Final answer
x = 613,926.31
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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.