Finding the Fourth Proportional to 904,107.80, 1,357,716.90 and 639,723.80
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Solution
The fourth proportional to 904,107.80, 1,357,716.90 and 639,723.80 is: 960,686.12
Step by Step Solution
- Step 1: Write the proportion equation
904,107.80 : 1,357,716.90 = 639,723.80 : x - Step 2: Convert to fraction form
904,107.80/1,357,716.90 = 639,723.80/x - Step 3: Cross multiply
904,107.80x = 1,357,716.90 × 639,723.80 - Step 4: Simplify right side
904,107.80x = 868,563,814,592.22 - Step 5: Solve for x
x = 868,563,814,592.22/904,107.80 - Step 6: Final answer
x = 960,686.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.