Finding the Fourth Proportional to 812,444.93, 1,121,160.34 and 449,860.99
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Solution
The fourth proportional to 812,444.93, 1,121,160.34 and 449,860.99 is: 620,800.59
Step by Step Solution
- Step 1: Write the proportion equation
812,444.93 : 1,121,160.34 = 449,860.99 : x - Step 2: Convert to fraction form
812,444.93/1,121,160.34 = 449,860.99/x - Step 3: Cross multiply
812,444.93x = 1,121,160.34 × 449,860.99 - Step 4: Simplify right side
812,444.93x = 504,366,297,832.27 - Step 5: Solve for x
x = 504,366,297,832.27/812,444.93 - Step 6: Final answer
x = 620,800.59
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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.