Finding the Fourth Proportional to 620,197.19, 929,705.28 and 199,177.82
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Solution
The fourth proportional to 620,197.19, 929,705.28 and 199,177.82 is: 298,577.09
Step by Step Solution
- Step 1: Write the proportion equation
620,197.19 : 929,705.28 = 199,177.82 : x - Step 2: Convert to fraction form
620,197.19/929,705.28 = 199,177.82/x - Step 3: Cross multiply
620,197.19x = 929,705.28 × 199,177.82 - Step 4: Simplify right side
620,197.19x = 185,176,670,912.89 - Step 5: Solve for x
x = 185,176,670,912.89/620,197.19 - Step 6: Final answer
x = 298,577.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.