Finding the Fourth Proportional to 3,986,165.70, 5,979,248.55 and 1,326,773.70
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Solution
The fourth proportional to 3,986,165.70, 5,979,248.55 and 1,326,773.70 is: 1,990,160.55
Step by Step Solution
- Step 1: Write the proportion equation
3,986,165.70 : 5,979,248.55 = 1,326,773.70 : x - Step 2: Convert to fraction form
3,986,165.70/5,979,248.55 = 1,326,773.70/x - Step 3: Cross multiply
3,986,165.70x = 5,979,248.55 × 1,326,773.70 - Step 4: Simplify right side
3,986,165.70x = 7,933,109,721,903.14 - Step 5: Solve for x
x = 7,933,109,721,903.14/3,986,165.70 - Step 6: Final answer
x = 1,990,160.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.