Finding the Fourth Proportional to 991,447.24, 1,368,086.12 and 561,635.32
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Solution
The fourth proportional to 991,447.24, 1,368,086.12 and 561,635.32 is: 774,993.82
Step by Step Solution
- Step 1: Write the proportion equation
991,447.24 : 1,368,086.12 = 561,635.32 : x - Step 2: Convert to fraction form
991,447.24/1,368,086.12 = 561,635.32/x - Step 3: Cross multiply
991,447.24x = 1,368,086.12 × 561,635.32 - Step 4: Simplify right side
991,447.24x = 768,365,485,793.76 - Step 5: Solve for x
x = 768,365,485,793.76/991,447.24 - Step 6: Final answer
x = 774,993.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.