Finding the Fourth Proportional to 620,975.08, 931,824.12 and 261,119.92
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Solution
The fourth proportional to 620,975.08, 931,824.12 and 261,119.92 is: 391,831.89
Step by Step Solution
- Step 1: Write the proportion equation
620,975.08 : 931,824.12 = 261,119.92 : x - Step 2: Convert to fraction form
620,975.08/931,824.12 = 261,119.92/x - Step 3: Cross multiply
620,975.08x = 931,824.12 × 261,119.92 - Step 4: Simplify right side
620,975.08x = 243,317,839,668.47 - Step 5: Solve for x
x = 243,317,839,668.47/620,975.08 - Step 6: Final answer
x = 391,831.89
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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.