Finding the Fourth Proportional to 3,920,423.04, 5,879,572.56 and 1,079,859.60
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Solution
The fourth proportional to 3,920,423.04, 5,879,572.56 and 1,079,859.60 is: 1,619,496.88
Step by Step Solution
- Step 1: Write the proportion equation
3,920,423.04 : 5,879,572.56 = 1,079,859.60 : x - Step 2: Convert to fraction form
3,920,423.04/5,879,572.56 = 1,079,859.60/x - Step 3: Cross multiply
3,920,423.04x = 5,879,572.56 × 1,079,859.60 - Step 4: Simplify right side
3,920,423.04x = 6,349,112,872,812.58 - Step 5: Solve for x
x = 6,349,112,872,812.58/3,920,423.04 - Step 6: Final answer
x = 1,619,496.88
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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.