Finding the Fourth Proportional to 3,969,000.70, 5,953,501.05 and 1,128,743.80
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Solution
The fourth proportional to 3,969,000.70, 5,953,501.05 and 1,128,743.80 is: 1,693,115.70
Step by Step Solution
- Step 1: Write the proportion equation
3,969,000.70 : 5,953,501.05 = 1,128,743.80 : x - Step 2: Convert to fraction form
3,969,000.70/5,953,501.05 = 1,128,743.80/x - Step 3: Cross multiply
3,969,000.70x = 5,953,501.05 × 1,128,743.80 - Step 4: Simplify right side
3,969,000.70x = 6,719,977,398,480.99 - Step 5: Solve for x
x = 6,719,977,398,480.99/3,969,000.70 - Step 6: Final answer
x = 1,693,115.70
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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.