Finding the Fourth Proportional to 991,600.68, 1,368,356.58 and 561,885.96
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Solution
The fourth proportional to 991,600.68, 1,368,356.58 and 561,885.96 is: 775,372.96
Step by Step Solution
- Step 1: Write the proportion equation
991,600.68 : 1,368,356.58 = 561,885.96 : x - Step 2: Convert to fraction form
991,600.68/1,368,356.58 = 561,885.96/x - Step 3: Cross multiply
991,600.68x = 1,368,356.58 × 561,885.96 - Step 4: Simplify right side
991,600.68x = 768,860,350,575.62 - Step 5: Solve for x
x = 768,860,350,575.62/991,600.68 - Step 6: Final answer
x = 775,372.96
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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.