Finding the Fourth Proportional to 999,799.86, 1,379,720.01 and 540,912.99
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Solution
The fourth proportional to 999,799.86, 1,379,720.01 and 540,912.99 is: 746,457.87
Step by Step Solution
- Step 1: Write the proportion equation
999,799.86 : 1,379,720.01 = 540,912.99 : x - Step 2: Convert to fraction form
999,799.86/1,379,720.01 = 540,912.99/x - Step 3: Cross multiply
999,799.86x = 1,379,720.01 × 540,912.99 - Step 4: Simplify right side
999,799.86x = 746,308,475,971.93 - Step 5: Solve for x
x = 746,308,475,971.93/999,799.86 - Step 6: Final answer
x = 746,457.87
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1.5x scale
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.