Finding the Fourth Proportional to 790,397.52, 1,090,450.84 and 518,615.44
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Solution
The fourth proportional to 790,397.52, 1,090,450.84 and 518,615.44 is: 715,493.95
Step by Step Solution
- Step 1: Write the proportion equation
790,397.52 : 1,090,450.84 = 518,615.44 : x - Step 2: Convert to fraction form
790,397.52/1,090,450.84 = 518,615.44/x - Step 3: Cross multiply
790,397.52x = 1,090,450.84 × 518,615.44 - Step 4: Simplify right side
790,397.52x = 565,524,642,184.97 - Step 5: Solve for x
x = 565,524,642,184.97/790,397.52 - Step 6: Final answer
x = 715,493.95
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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.