Finding the Fourth Proportional to 780,986.19, 1,077,442.97 and 508,954.98
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Solution
The fourth proportional to 780,986.19, 1,077,442.97 and 508,954.98 is: 702,150.66
Step by Step Solution
- Step 1: Write the proportion equation
780,986.19 : 1,077,442.97 = 508,954.98 : x - Step 2: Convert to fraction form
780,986.19/1,077,442.97 = 508,954.98/x - Step 3: Cross multiply
780,986.19x = 1,077,442.97 × 508,954.98 - Step 4: Simplify right side
780,986.19x = 548,369,965,247.49 - Step 5: Solve for x
x = 548,369,965,247.49/780,986.19 - Step 6: Final answer
x = 702,150.66
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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.