Finding the Fourth Proportional to 2,351,945.80, 3,245,926.26 and 1,385,380.36
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Solution
The fourth proportional to 2,351,945.80, 3,245,926.26 and 1,385,380.36 is: 1,911,966.89
Step by Step Solution
- Step 1: Write the proportion equation
2,351,945.80 : 3,245,926.26 = 1,385,380.36 : x - Step 2: Convert to fraction form
2,351,945.80/3,245,926.26 = 1,385,380.36/x - Step 3: Cross multiply
2,351,945.80x = 3,245,926.26 × 1,385,380.36 - Step 4: Simplify right side
2,351,945.80x = 4,496,842,490,612.25 - Step 5: Solve for x
x = 4,496,842,490,612.25/2,351,945.80 - Step 6: Final answer
x = 1,911,966.89
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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.