Finding the Fourth Proportional to 493,976.31, 681,799.10 and 279,240.99
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Solution
The fourth proportional to 493,976.31, 681,799.10 and 279,240.99 is: 385,415.76
Step by Step Solution
- Step 1: Write the proportion equation
493,976.31 : 681,799.10 = 279,240.99 : x - Step 2: Convert to fraction form
493,976.31/681,799.10 = 279,240.99/x - Step 3: Cross multiply
493,976.31x = 681,799.10 × 279,240.99 - Step 4: Simplify right side
493,976.31x = 190,386,255,665.11 - Step 5: Solve for x
x = 190,386,255,665.11/493,976.31 - Step 6: Final answer
x = 385,415.76
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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.