Finding the Fourth Proportional to 1,555,358.31, 2,146,285.22 and 857,608.11
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Solution
The fourth proportional to 1,555,358.31, 2,146,285.22 and 857,608.11 is: 1,183,438.95
Step by Step Solution
- Step 1: Write the proportion equation
1,555,358.31 : 2,146,285.22 = 857,608.11 : x - Step 2: Convert to fraction form
1,555,358.31/2,146,285.22 = 857,608.11/x - Step 3: Cross multiply
1,555,358.31x = 2,146,285.22 × 857,608.11 - Step 4: Simplify right side
1,555,358.31x = 1,840,671,606,757.09 - Step 5: Solve for x
x = 1,840,671,606,757.09/1,555,358.31 - Step 6: Final answer
x = 1,183,438.95
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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.