Finding the Fourth Proportional to 1,135,274.79, 1,567,479.60 and 728,424.75
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Solution
The fourth proportional to 1,135,274.79, 1,567,479.60 and 728,424.75 is: 1,005,739.71
Step by Step Solution
- Step 1: Write the proportion equation
1,135,274.79 : 1,567,479.60 = 728,424.75 : x - Step 2: Convert to fraction form
1,135,274.79/1,567,479.60 = 728,424.75/x - Step 3: Cross multiply
1,135,274.79x = 1,567,479.60 × 728,424.75 - Step 4: Simplify right side
1,135,274.79x = 1,141,790,935,760.10 - Step 5: Solve for x
x = 1,141,790,935,760.10/1,135,274.79 - Step 6: Final answer
x = 1,005,739.71
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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.