Finding the Fourth Proportional to 1,769,697.61, 2,442,390.05 and 1,005,865.99
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Solution
The fourth proportional to 1,769,697.61, 2,442,390.05 and 1,005,865.99 is: 1,388,212.92
Step by Step Solution
- Step 1: Write the proportion equation
1,769,697.61 : 2,442,390.05 = 1,005,865.99 : x - Step 2: Convert to fraction form
1,769,697.61/2,442,390.05 = 1,005,865.99/x - Step 3: Cross multiply
1,769,697.61x = 2,442,390.05 × 1,005,865.99 - Step 4: Simplify right side
1,769,697.61x = 2,456,717,085,609.40 - Step 5: Solve for x
x = 2,456,717,085,609.40/1,769,697.61 - Step 6: Final answer
x = 1,388,212.92
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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.