Finding the Fourth Proportional to 1,515,914.60, 2,091,836.44 and 862,366.70
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Solution
The fourth proportional to 1,515,914.60, 2,091,836.44 and 862,366.70 is: 1,189,994.54
Step by Step Solution
- Step 1: Write the proportion equation
1,515,914.60 : 2,091,836.44 = 862,366.70 : x - Step 2: Convert to fraction form
1,515,914.60/2,091,836.44 = 862,366.70/x - Step 3: Cross multiply
1,515,914.60x = 2,091,836.44 × 862,366.70 - Step 4: Simplify right side
1,515,914.60x = 1,803,930,094,010.10 - Step 5: Solve for x
x = 1,803,930,094,010.10/1,515,914.60 - Step 6: Final answer
x = 1,189,994.54
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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.