Finding the Fourth Proportional to 727,869.06, 1,004,449.14 and 405,592.74
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Solution
The fourth proportional to 727,869.06, 1,004,449.14 and 405,592.74 is: 559,712.32
Step by Step Solution
- Step 1: Write the proportion equation
727,869.06 : 1,004,449.14 = 405,592.74 : x - Step 2: Convert to fraction form
727,869.06/1,004,449.14 = 405,592.74/x - Step 3: Cross multiply
727,869.06x = 1,004,449.14 × 405,592.74 - Step 4: Simplify right side
727,869.06x = 407,397,278,883.24 - Step 5: Solve for x
x = 407,397,278,883.24/727,869.06 - Step 6: Final answer
x = 559,712.32
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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.