Finding the Fourth Proportional to 672,197.70, 1,008,296.55 and 423,365.70
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Solution
The fourth proportional to 672,197.70, 1,008,296.55 and 423,365.70 is: 635,048.55
Step by Step Solution
- Step 1: Write the proportion equation
672,197.70 : 1,008,296.55 = 423,365.70 : x - Step 2: Convert to fraction form
672,197.70/1,008,296.55 = 423,365.70/x - Step 3: Cross multiply
672,197.70x = 1,008,296.55 × 423,365.70 - Step 4: Simplify right side
672,197.70x = 426,878,174,698.34 - Step 5: Solve for x
x = 426,878,174,698.34/672,197.70 - Step 6: Final answer
x = 635,048.55
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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.