Finding the Fourth Proportional to 3,438,238.80, 5,157,358.20 and 914,149.20
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Solution
The fourth proportional to 3,438,238.80, 5,157,358.20 and 914,149.20 is: 1,371,223.80
Step by Step Solution
- Step 1: Write the proportion equation
3,438,238.80 : 5,157,358.20 = 914,149.20 : x - Step 2: Convert to fraction form
3,438,238.80/5,157,358.20 = 914,149.20/x - Step 3: Cross multiply
3,438,238.80x = 5,157,358.20 × 914,149.20 - Step 4: Simplify right side
3,438,238.80x = 4,714,594,872,643.44 - Step 5: Solve for x
x = 4,714,594,872,643.44/3,438,238.80 - Step 6: Final answer
x = 1,371,223.80
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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.