Finding the Fourth Proportional to 415,918.49, 623,877.84 and 116,443.18
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Solution
The fourth proportional to 415,918.49, 623,877.84 and 116,443.18 is: 174,664.80
Step by Step Solution
- Step 1: Write the proportion equation
415,918.49 : 623,877.84 = 116,443.18 : x - Step 2: Convert to fraction form
415,918.49/623,877.84 = 116,443.18/x - Step 3: Cross multiply
415,918.49x = 623,877.84 × 116,443.18 - Step 4: Simplify right side
415,918.49x = 72,646,318,061.44 - Step 5: Solve for x
x = 72,646,318,061.44/415,918.49 - Step 6: Final answer
x = 174,664.80
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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.