Finding the Fourth Proportional to 877,318.56, 1,316,464.44 and 428,043.12
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Solution
The fourth proportional to 877,318.56, 1,316,464.44 and 428,043.12 is: 642,302.09
Step by Step Solution
- Step 1: Write the proportion equation
877,318.56 : 1,316,464.44 = 428,043.12 : x - Step 2: Convert to fraction form
877,318.56/1,316,464.44 = 428,043.12/x - Step 3: Cross multiply
877,318.56x = 1,316,464.44 × 428,043.12 - Step 4: Simplify right side
877,318.56x = 563,503,546,266.65 - Step 5: Solve for x
x = 563,503,546,266.65/877,318.56 - Step 6: Final answer
x = 642,302.09
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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.