Finding the Fourth Proportional to 1,686,122.72, 2,326,909.92 and 961,079.84
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Solution
The fourth proportional to 1,686,122.72, 2,326,909.92 and 961,079.84 is: 1,326,324.70
Step by Step Solution
- Step 1: Write the proportion equation
1,686,122.72 : 2,326,909.92 = 961,079.84 : x - Step 2: Convert to fraction form
1,686,122.72/2,326,909.92 = 961,079.84/x - Step 3: Cross multiply
1,686,122.72x = 2,326,909.92 × 961,079.84 - Step 4: Simplify right side
1,686,122.72x = 2,236,346,213,608.01 - Step 5: Solve for x
x = 2,236,346,213,608.01/1,686,122.72 - Step 6: Final answer
x = 1,326,324.70
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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.