Finding the Fourth Proportional to 3,219,516.15, 4,441,963.39 and 1,929,885.99
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Solution
The fourth proportional to 3,219,516.15, 4,441,963.39 and 1,929,885.99 is: 2,662,661.88
Step by Step Solution
- Step 1: Write the proportion equation
3,219,516.15 : 4,441,963.39 = 1,929,885.99 : x - Step 2: Convert to fraction form
3,219,516.15/4,441,963.39 = 1,929,885.99/x - Step 3: Cross multiply
3,219,516.15x = 4,441,963.39 × 1,929,885.99 - Step 4: Simplify right side
3,219,516.15x = 8,572,482,914,453.91 - Step 5: Solve for x
x = 8,572,482,914,453.91/3,219,516.15 - Step 6: Final answer
x = 2,662,661.88
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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.