Finding the Fourth Proportional to 438,623.80, 657,935.70 and 438,623.80
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Solution
The fourth proportional to 438,623.80, 657,935.70 and 438,623.80 is: 657,935.70
Step by Step Solution
- Step 1: Write the proportion equation
438,623.80 : 657,935.70 = 438,623.80 : x - Step 2: Convert to fraction form
438,623.80/657,935.70 = 438,623.80/x - Step 3: Cross multiply
438,623.80x = 657,935.70 × 438,623.80 - Step 4: Simplify right side
438,623.80x = 288,586,256,889.66 - Step 5: Solve for x
x = 288,586,256,889.66/438,623.80 - Step 6: Final answer
x = 657,935.70
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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.