Finding the Fourth Proportional to 982,831.15, 1,474,175.58 and 309,105.15
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Solution
The fourth proportional to 982,831.15, 1,474,175.58 and 309,105.15 is: 463,635.35
Step by Step Solution
- Step 1: Write the proportion equation
982,831.15 : 1,474,175.58 = 309,105.15 : x - Step 2: Convert to fraction form
982,831.15/1,474,175.58 = 309,105.15/x - Step 3: Cross multiply
982,831.15x = 1,474,175.58 × 309,105.15 - Step 4: Simplify right side
982,831.15x = 455,675,263,782.24 - Step 5: Solve for x
x = 455,675,263,782.24/982,831.15 - Step 6: Final answer
x = 463,635.35
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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.