Finding the Fourth Proportional to 1,991,157.16, 2,986,730.04 and 495,249.16
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Solution
The fourth proportional to 1,991,157.16, 2,986,730.04 and 495,249.16 is: 742,872.32
Step by Step Solution
- Step 1: Write the proportion equation
1,991,157.16 : 2,986,730.04 = 495,249.16 : x - Step 2: Convert to fraction form
1,991,157.16/2,986,730.04 = 495,249.16/x - Step 3: Cross multiply
1,991,157.16x = 2,986,730.04 × 495,249.16 - Step 4: Simplify right side
1,991,157.16x = 1,479,175,543,456.77 - Step 5: Solve for x
x = 1,479,175,543,456.77/1,991,157.16 - Step 6: Final answer
x = 742,872.32
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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.