Finding the Fourth Proportional to 693,396.86, 956,882.91 and 387,473.99
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Solution
The fourth proportional to 693,396.86, 956,882.91 and 387,473.99 is: 534,711.45
Step by Step Solution
- Step 1: Write the proportion equation
693,396.86 : 956,882.91 = 387,473.99 : x - Step 2: Convert to fraction form
693,396.86/956,882.91 = 387,473.99/x - Step 3: Cross multiply
693,396.86x = 956,882.91 × 387,473.99 - Step 4: Simplify right side
693,396.86x = 370,767,239,100.51 - Step 5: Solve for x
x = 370,767,239,100.51/693,396.86 - Step 6: Final answer
x = 534,711.45
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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.