Finding the Fourth Proportional to 639,107.59, 881,967.82 and 352,627.65
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Solution
The fourth proportional to 639,107.59, 881,967.82 and 352,627.65 is: 486,625.80
Step by Step Solution
- Step 1: Write the proportion equation
639,107.59 : 881,967.82 = 352,627.65 : x - Step 2: Convert to fraction form
639,107.59/881,967.82 = 352,627.65/x - Step 3: Cross multiply
639,107.59x = 881,967.82 × 352,627.65 - Step 4: Simplify right side
639,107.59x = 311,006,239,742.22 - Step 5: Solve for x
x = 311,006,239,742.22/639,107.59 - Step 6: Final answer
x = 486,625.80
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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.