Finding the Fourth Proportional to 826,213.97, 1,238,324.33 and 426,636.92
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Solution
The fourth proportional to 826,213.97, 1,238,324.33 and 426,636.92 is: 639,440.75
Step by Step Solution
- Step 1: Write the proportion equation
826,213.97 : 1,238,324.33 = 426,636.92 : x - Step 2: Convert to fraction form
826,213.97/1,238,324.33 = 426,636.92/x - Step 3: Cross multiply
826,213.97x = 1,238,324.33 × 426,636.92 - Step 4: Simplify right side
826,213.97x = 528,314,882,274.67 - Step 5: Solve for x
x = 528,314,882,274.67/826,213.97 - Step 6: Final answer
x = 639,440.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.