Finding the Fourth Proportional to 783,860.63, 1,081,739.16 and 439,772.63
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Solution
The fourth proportional to 783,860.63, 1,081,739.16 and 439,772.63 is: 606,892.67
Step by Step Solution
- Step 1: Write the proportion equation
783,860.63 : 1,081,739.16 = 439,772.63 : x - Step 2: Convert to fraction form
783,860.63/1,081,739.16 = 439,772.63/x - Step 3: Cross multiply
783,860.63x = 1,081,739.16 × 439,772.63 - Step 4: Simplify right side
783,860.63x = 475,719,270,760.95 - Step 5: Solve for x
x = 475,719,270,760.95/783,860.63 - Step 6: Final answer
x = 606,892.67
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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.