Finding the Fourth Proportional to 669,478.97, 923,422.48 and 427,654.18
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Solution
The fourth proportional to 669,478.97, 923,422.48 and 427,654.18 is: 589,869.88
Step by Step Solution
- Step 1: Write the proportion equation
669,478.97 : 923,422.48 = 427,654.18 : x - Step 2: Convert to fraction form
669,478.97/923,422.48 = 427,654.18/x - Step 3: Cross multiply
669,478.97x = 923,422.48 × 427,654.18 - Step 4: Simplify right side
669,478.97x = 394,905,483,563.11 - Step 5: Solve for x
x = 394,905,483,563.11/669,478.97 - Step 6: Final answer
x = 589,869.88
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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.