Finding the Fourth Proportional to 878,695.44, 1,212,628.40 and 486,232.92
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Solution
The fourth proportional to 878,695.44, 1,212,628.40 and 486,232.92 is: 671,017.31
Step by Step Solution
- Step 1: Write the proportion equation
878,695.44 : 1,212,628.40 = 486,232.92 : x - Step 2: Convert to fraction form
878,695.44/1,212,628.40 = 486,232.92/x - Step 3: Cross multiply
878,695.44x = 1,212,628.40 × 486,232.92 - Step 4: Simplify right side
878,695.44x = 589,619,847,806.93 - Step 5: Solve for x
x = 589,619,847,806.93/878,695.44 - Step 6: Final answer
x = 671,017.31
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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.