Finding the Fourth Proportional to 686,992.40, 1,030,878.36 and 266,297.36
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Solution
The fourth proportional to 686,992.40, 1,030,878.36 and 266,297.36 is: 399,597.12
Step by Step Solution
- Step 1: Write the proportion equation
686,992.40 : 1,030,878.36 = 266,297.36 : x - Step 2: Convert to fraction form
686,992.40/1,030,878.36 = 266,297.36/x - Step 3: Cross multiply
686,992.40x = 1,030,878.36 × 266,297.36 - Step 4: Simplify right side
686,992.40x = 274,520,185,749.13 - Step 5: Solve for x
x = 274,520,185,749.13/686,992.40 - Step 6: Final answer
x = 399,597.12
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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.