Finding the Fourth Proportional to 700,718.45, 966,991.62 and 378,428.63
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Solution
The fourth proportional to 700,718.45, 966,991.62 and 378,428.63 is: 522,231.59
Step by Step Solution
- Step 1: Write the proportion equation
700,718.45 : 966,991.62 = 378,428.63 : x - Step 2: Convert to fraction form
700,718.45/966,991.62 = 378,428.63/x - Step 3: Cross multiply
700,718.45x = 966,991.62 × 378,428.63 - Step 4: Simplify right side
700,718.45x = 365,937,310,473.31 - Step 5: Solve for x
x = 365,937,310,473.31/700,718.45 - Step 6: Final answer
x = 522,231.59
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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.