Finding the Fourth Proportional to 769,793.82, 1,154,569.41 and 257,455.05
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Solution
The fourth proportional to 769,793.82, 1,154,569.41 and 257,455.05 is: 386,142.00
Step by Step Solution
- Step 1: Write the proportion equation
769,793.82 : 1,154,569.41 = 257,455.05 : x - Step 2: Convert to fraction form
769,793.82/1,154,569.41 = 257,455.05/x - Step 3: Cross multiply
769,793.82x = 1,154,569.41 × 257,455.05 - Step 4: Simplify right side
769,793.82x = 297,249,725,180.02 - Step 5: Solve for x
x = 297,249,725,180.02/769,793.82 - Step 6: Final answer
x = 386,142.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.