Finding the Fourth Proportional to 775,891.62, 1,070,569.92 and 453,539.36
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Solution
The fourth proportional to 775,891.62, 1,070,569.92 and 453,539.36 is: 625,790.49
Step by Step Solution
- Step 1: Write the proportion equation
775,891.62 : 1,070,569.92 = 453,539.36 : x - Step 2: Convert to fraction form
775,891.62/1,070,569.92 = 453,539.36/x - Step 3: Cross multiply
775,891.62x = 1,070,569.92 × 453,539.36 - Step 4: Simplify right side
775,891.62x = 485,545,596,352.05 - Step 5: Solve for x
x = 485,545,596,352.05/775,891.62 - Step 6: Final answer
x = 625,790.49
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1.5x scale
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.