Finding the Fourth Proportional to 864,239.10, 1,296,358.65 and 303,330.30
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Solution
The fourth proportional to 864,239.10, 1,296,358.65 and 303,330.30 is: 454,995.45
Step by Step Solution
- Step 1: Write the proportion equation
864,239.10 : 1,296,358.65 = 303,330.30 : x - Step 2: Convert to fraction form
864,239.10/1,296,358.65 = 303,330.30/x - Step 3: Cross multiply
864,239.10x = 1,296,358.65 × 303,330.30 - Step 4: Simplify right side
864,239.10x = 393,224,858,212.10 - Step 5: Solve for x
x = 393,224,858,212.10/864,239.10 - Step 6: Final answer
x = 454,995.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.