Finding the Fourth Proportional to 1,135,262.79, 1,567,463.00 and 728,412.75
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Solution
The fourth proportional to 1,135,262.79, 1,567,463.00 and 728,412.75 is: 1,005,723.12
Step by Step Solution
- Step 1: Write the proportion equation
1,135,262.79 : 1,567,463.00 = 728,412.75 : x - Step 2: Convert to fraction form
1,135,262.79/1,567,463.00 = 728,412.75/x - Step 3: Cross multiply
1,135,262.79x = 1,567,463.00 × 728,412.75 - Step 4: Simplify right side
1,135,262.79x = 1,141,760,030,711.19 - Step 5: Solve for x
x = 1,141,760,030,711.19/1,135,262.79 - Step 6: Final answer
x = 1,005,723.12
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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.