Finding the Fourth Proportional to 1,245,596.70, 1,868,108.30 and 487,456.14
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Solution
The fourth proportional to 1,245,596.70, 1,868,108.30 and 487,456.14 is: 731,071.99
Step by Step Solution
- Step 1: Write the proportion equation
1,245,596.70 : 1,868,108.30 = 487,456.14 : x - Step 2: Convert to fraction form
1,245,596.70/1,868,108.30 = 487,456.14/x - Step 3: Cross multiply
1,245,596.70x = 1,868,108.30 × 487,456.14 - Step 4: Simplify right side
1,245,596.70x = 910,620,861,019.96 - Step 5: Solve for x
x = 910,620,861,019.96/1,245,596.70 - Step 6: Final answer
x = 731,071.99
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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.