Finding the Fourth Proportional to 718,440.08, 1,077,660.16 and 318,986.96
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Solution
The fourth proportional to 718,440.08, 1,077,660.16 and 318,986.96 is: 478,480.46
Step by Step Solution
- Step 1: Write the proportion equation
718,440.08 : 1,077,660.16 = 318,986.96 : x - Step 2: Convert to fraction form
718,440.08/1,077,660.16 = 318,986.96/x - Step 3: Cross multiply
718,440.08x = 1,077,660.16 × 318,986.96 - Step 4: Simplify right side
718,440.08x = 343,759,538,351.51 - Step 5: Solve for x
x = 343,759,538,351.51/718,440.08 - Step 6: Final answer
x = 478,480.46
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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.