Finding the Fourth Proportional to 810,051.84, 1,117,717.38 and 487,782.81
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Solution
The fourth proportional to 810,051.84, 1,117,717.38 and 487,782.81 is: 673,047.45
Step by Step Solution
- Step 1: Write the proportion equation
810,051.84 : 1,117,717.38 = 487,782.81 : x - Step 2: Convert to fraction form
810,051.84/1,117,717.38 = 487,782.81/x - Step 3: Cross multiply
810,051.84x = 1,117,717.38 × 487,782.81 - Step 4: Simplify right side
810,051.84x = 545,203,324,402.24 - Step 5: Solve for x
x = 545,203,324,402.24/810,051.84 - Step 6: Final answer
x = 673,047.45
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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.