Finding the Fourth Proportional to 745,349.92, 1,028,548.56 and 405,817.12
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Solution
The fourth proportional to 745,349.92, 1,028,548.56 and 405,817.12 is: 560,008.93
Step by Step Solution
- Step 1: Write the proportion equation
745,349.92 : 1,028,548.56 = 405,817.12 : x - Step 2: Convert to fraction form
745,349.92/1,028,548.56 = 405,817.12/x - Step 3: Cross multiply
745,349.92x = 1,028,548.56 × 405,817.12 - Step 4: Simplify right side
745,349.92x = 417,402,614,399.35 - Step 5: Solve for x
x = 417,402,614,399.35/745,349.92 - Step 6: Final answer
x = 560,008.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.