Finding the Fourth Proportional to 693,394.86, 956,880.15 and 387,471.99
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Solution
The fourth proportional to 693,394.86, 956,880.15 and 387,471.99 is: 534,708.69
Step by Step Solution
- Step 1: Write the proportion equation
693,394.86 : 956,880.15 = 387,471.99 : x - Step 2: Convert to fraction form
693,394.86/956,880.15 = 387,471.99/x - Step 3: Cross multiply
693,394.86x = 956,880.15 × 387,471.99 - Step 4: Simplify right side
693,394.86x = 370,764,255,912.00 - Step 5: Solve for x
x = 370,764,255,912.00/693,394.86 - Step 6: Final answer
x = 534,708.69
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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.