Finding the Fourth Proportional to 986,163.08, 1,360,539.78 and 728,660.84
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Solution
The fourth proportional to 986,163.08, 1,360,539.78 and 728,660.84 is: 1,005,282.07
Step by Step Solution
- Step 1: Write the proportion equation
986,163.08 : 1,360,539.78 = 728,660.84 : x - Step 2: Convert to fraction form
986,163.08/1,360,539.78 = 728,660.84/x - Step 3: Cross multiply
986,163.08x = 1,360,539.78 × 728,660.84 - Step 4: Simplify right side
986,163.08x = 991,372,058,948.22 - Step 5: Solve for x
x = 991,372,058,948.22/986,163.08 - Step 6: Final answer
x = 1,005,282.07
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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.