Finding the Fourth Proportional to 821,779.36, 1,230,453.96 and 536,764.12
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Solution
The fourth proportional to 821,779.36, 1,230,453.96 and 536,764.12 is: 803,699.35
Step by Step Solution
- Step 1: Write the proportion equation
821,779.36 : 1,230,453.96 = 536,764.12 : x - Step 2: Convert to fraction form
821,779.36/1,230,453.96 = 536,764.12/x - Step 3: Cross multiply
821,779.36x = 1,230,453.96 × 536,764.12 - Step 4: Simplify right side
821,779.36x = 660,463,537,039.92 - Step 5: Solve for x
x = 660,463,537,039.92/821,779.36 - Step 6: Final answer
x = 803,699.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.