Finding the Fourth Proportional to 1,189,540.32, 1,641,567.11 and 645,676.08
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Solution
The fourth proportional to 1,189,540.32, 1,641,567.11 and 645,676.08 is: 891,033.79
Step by Step Solution
- Step 1: Write the proportion equation
1,189,540.32 : 1,641,567.11 = 645,676.08 : x - Step 2: Convert to fraction form
1,189,540.32/1,641,567.11 = 645,676.08/x - Step 3: Cross multiply
1,189,540.32x = 1,641,567.11 × 645,676.08 - Step 4: Simplify right side
1,189,540.32x = 1,059,920,616,641.73 - Step 5: Solve for x
x = 1,059,920,616,641.73/1,189,540.32 - Step 6: Final answer
x = 891,033.79
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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.