Finding the Fourth Proportional to 669,389.62, 923,489.76 and 427,609.48
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Solution
The fourth proportional to 669,389.62, 923,489.76 and 427,609.48 is: 589,929.94
Step by Step Solution
- Step 1: Write the proportion equation
669,389.62 : 923,489.76 = 427,609.48 : x - Step 2: Convert to fraction form
669,389.62/923,489.76 = 427,609.48/x - Step 3: Cross multiply
669,389.62x = 923,489.76 × 427,609.48 - Step 4: Simplify right side
669,389.62x = 394,892,976,058.93 - Step 5: Solve for x
x = 394,892,976,058.93/669,389.62 - Step 6: Final answer
x = 589,929.94
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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.