Finding the Fourth Proportional to 991,552.98, 1,368,231.84 and 561,741.06
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Solution
The fourth proportional to 991,552.98, 1,368,231.84 and 561,741.06 is: 775,139.62
Step by Step Solution
- Step 1: Write the proportion equation
991,552.98 : 1,368,231.84 = 561,741.06 : x - Step 2: Convert to fraction form
991,552.98/1,368,231.84 = 561,741.06/x - Step 3: Cross multiply
991,552.98x = 1,368,231.84 × 561,741.06 - Step 4: Simplify right side
991,552.98x = 768,592,004,127.35 - Step 5: Solve for x
x = 768,592,004,127.35/991,552.98 - Step 6: Final answer
x = 775,139.62
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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.