Finding the Fourth Proportional to 493,802.11, 681,502.37 and 278,956.09
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Solution
The fourth proportional to 493,802.11, 681,502.37 and 278,956.09 is: 384,990.73
Step by Step Solution
- Step 1: Write the proportion equation
493,802.11 : 681,502.37 = 278,956.09 : x - Step 2: Convert to fraction form
493,802.11/681,502.37 = 278,956.09/x - Step 3: Cross multiply
493,802.11x = 681,502.37 × 278,956.09 - Step 4: Simplify right side
493,802.11x = 190,109,236,460.93 - Step 5: Solve for x
x = 190,109,236,460.93/493,802.11 - Step 6: Final answer
x = 384,990.73
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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.