Finding the Fourth Proportional to 393,618.76, 543,101.16 and 291,879.52
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Solution
The fourth proportional to 393,618.76, 543,101.16 and 291,879.52 is: 402,724.98
Step by Step Solution
- Step 1: Write the proportion equation
393,618.76 : 543,101.16 = 291,879.52 : x - Step 2: Convert to fraction form
393,618.76/543,101.16 = 291,879.52/x - Step 3: Cross multiply
393,618.76x = 543,101.16 × 291,879.52 - Step 4: Simplify right side
393,618.76x = 158,520,105,892.24 - Step 5: Solve for x
x = 158,520,105,892.24/393,618.76 - Step 6: Final answer
x = 402,724.98
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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.