Finding the Fourth Proportional to 1,189,234.68, 1,641,148.14 and 645,370.29
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Solution
The fourth proportional to 1,189,234.68, 1,641,148.14 and 645,370.29 is: 890,613.32
Step by Step Solution
- Step 1: Write the proportion equation
1,189,234.68 : 1,641,148.14 = 645,370.29 : x - Step 2: Convert to fraction form
1,189,234.68/1,641,148.14 = 645,370.29/x - Step 3: Cross multiply
1,189,234.68x = 1,641,148.14 × 645,370.29 - Step 4: Simplify right side
1,189,234.68x = 1,059,148,251,044.76 - Step 5: Solve for x
x = 1,059,148,251,044.76/1,189,234.68 - Step 6: Final answer
x = 890,613.32
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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.