Finding the Fourth Proportional to 1,107,568.70, 1,661,353.05 and 930,421.70
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Solution
The fourth proportional to 1,107,568.70, 1,661,353.05 and 930,421.70 is: 1,395,632.55
Step by Step Solution
- Step 1: Write the proportion equation
1,107,568.70 : 1,661,353.05 = 930,421.70 : x - Step 2: Convert to fraction form
1,107,568.70/1,661,353.05 = 930,421.70/x - Step 3: Cross multiply
1,107,568.70x = 1,661,353.05 × 930,421.70 - Step 4: Simplify right side
1,107,568.70x = 1,545,758,929,081.19 - Step 5: Solve for x
x = 1,545,758,929,081.19/1,107,568.70 - Step 6: Final answer
x = 1,395,632.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.