Finding the Fourth Proportional to 1,347,589.80, 1,859,832.90 and 774,654.12
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Solution
The fourth proportional to 1,347,589.80, 1,859,832.90 and 774,654.12 is: 1,069,114.07
Step by Step Solution
- Step 1: Write the proportion equation
1,347,589.80 : 1,859,832.90 = 774,654.12 : x - Step 2: Convert to fraction form
1,347,589.80/1,859,832.90 = 774,654.12/x - Step 3: Cross multiply
1,347,589.80x = 1,859,832.90 × 774,654.12 - Step 4: Simplify right side
1,347,589.80x = 1,440,727,218,496.55 - Step 5: Solve for x
x = 1,440,727,218,496.55/1,347,589.80 - Step 6: Final answer
x = 1,069,114.07
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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.