Finding the Fourth Proportional to 637,858.20, 955,475.10 and 438,403.80
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Solution
The fourth proportional to 637,858.20, 955,475.10 and 438,403.80 is: 656,703.82
Step by Step Solution
- Step 1: Write the proportion equation
637,858.20 : 955,475.10 = 438,403.80 : x - Step 2: Convert to fraction form
637,858.20/955,475.10 = 438,403.80/x - Step 3: Cross multiply
637,858.20x = 955,475.10 × 438,403.80 - Step 4: Simplify right side
637,858.20x = 418,883,914,645.38 - Step 5: Solve for x
x = 418,883,914,645.38/637,858.20 - Step 6: Final answer
x = 656,703.82
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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.