Finding the Fourth Proportional to 669,324.81, 923,663.10 and 363,395.19
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Solution
The fourth proportional to 669,324.81, 923,663.10 and 363,395.19 is: 501,482.57
Step by Step Solution
- Step 1: Write the proportion equation
669,324.81 : 923,663.10 = 363,395.19 : x - Step 2: Convert to fraction form
669,324.81/923,663.10 = 363,395.19/x - Step 3: Cross multiply
669,324.81x = 923,663.10 × 363,395.19 - Step 4: Simplify right side
669,324.81x = 335,654,727,720.49 - Step 5: Solve for x
x = 335,654,727,720.49/669,324.81 - Step 6: Final answer
x = 501,482.57
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Double scale
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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.