Finding the Fourth Proportional to 912,395.48, 1,259,098.20 and 504,515.12
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Solution
The fourth proportional to 912,395.48, 1,259,098.20 and 504,515.12 is: 696,226.68
Step by Step Solution
- Step 1: Write the proportion equation
912,395.48 : 1,259,098.20 = 504,515.12 : x - Step 2: Convert to fraction form
912,395.48/1,259,098.20 = 504,515.12/x - Step 3: Cross multiply
912,395.48x = 1,259,098.20 × 504,515.12 - Step 4: Simplify right side
912,395.48x = 635,234,079,464.78 - Step 5: Solve for x
x = 635,234,079,464.78/912,395.48 - Step 6: Final answer
x = 696,226.68
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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.