Finding the Fourth Proportional to 851,634.06, 1,276,936.55 and 339,378
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Solution
The fourth proportional to 851,634.06, 1,276,936.55 and 339,378 is: 508,861.95
Step by Step Solution
- Step 1: Write the proportion equation
851,634.06 : 1,276,936.55 = 339,378 : x - Step 2: Convert to fraction form
851,634.06/1,276,936.55 = 339,378/x - Step 3: Cross multiply
851,634.06x = 1,276,936.55 × 339,378 - Step 4: Simplify right side
851,634.06x = 433,364,172,465.90 - Step 5: Solve for x
x = 433,364,172,465.90/851,634.06 - Step 6: Final answer
x = 508,861.95
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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.