Finding the Fourth Proportional to 1,944,121.60, 2,912,245.80 and 1,101,689.20
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Solution
The fourth proportional to 1,944,121.60, 2,912,245.80 and 1,101,689.20 is: 1,650,303.02
Step by Step Solution
- Step 1: Write the proportion equation
1,944,121.60 : 2,912,245.80 = 1,101,689.20 : x - Step 2: Convert to fraction form
1,944,121.60/2,912,245.80 = 1,101,689.20/x - Step 3: Cross multiply
1,944,121.60x = 2,912,245.80 × 1,101,689.20 - Step 4: Simplify right side
1,944,121.60x = 3,208,389,745,605.36 - Step 5: Solve for x
x = 3,208,389,745,605.36/1,944,121.60 - Step 6: Final answer
x = 1,650,303.02
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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.