Finding the Fourth Proportional to 639,107.47, 881,967.64 and 352,627.53
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Solution
The fourth proportional to 639,107.47, 881,967.64 and 352,627.53 is: 486,625.62
Step by Step Solution
- Step 1: Write the proportion equation
639,107.47 : 881,967.64 = 352,627.53 : x - Step 2: Convert to fraction form
639,107.47/881,967.64 = 352,627.53/x - Step 3: Cross multiply
639,107.47x = 881,967.64 × 352,627.53 - Step 4: Simplify right side
639,107.47x = 311,006,070,433.13 - Step 5: Solve for x
x = 311,006,070,433.13/639,107.47 - Step 6: Final answer
x = 486,625.62
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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.