Finding the Fourth Proportional to 639,021.46, 881,844.69 and 352,553.62
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Solution
The fourth proportional to 639,021.46, 881,844.69 and 352,553.62 is: 486,521.28
Step by Step Solution
- Step 1: Write the proportion equation
639,021.46 : 881,844.69 = 352,553.62 : x - Step 2: Convert to fraction form
639,021.46/881,844.69 = 352,553.62/x - Step 3: Cross multiply
639,021.46x = 881,844.69 × 352,553.62 - Step 4: Simplify right side
639,021.46x = 310,897,537,737.28 - Step 5: Solve for x
x = 310,897,537,737.28/639,021.46 - Step 6: Final answer
x = 486,521.28
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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.