Finding the Fourth Proportional to 3,107,478.69, 4,288,536.19 and 1,883,835.79
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Solution
The fourth proportional to 3,107,478.69, 4,288,536.19 and 1,883,835.79 is: 2,599,824.09
Step by Step Solution
- Step 1: Write the proportion equation
3,107,478.69 : 4,288,536.19 = 1,883,835.79 : x - Step 2: Convert to fraction form
3,107,478.69/4,288,536.19 = 1,883,835.79/x - Step 3: Cross multiply
3,107,478.69x = 4,288,536.19 × 1,883,835.79 - Step 4: Simplify right side
3,107,478.69x = 8,078,897,961,432.24 - Step 5: Solve for x
x = 8,078,897,961,432.24/3,107,478.69 - Step 6: Final answer
x = 2,599,824.09
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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.