Finding the Fourth Proportional to 718,894.29, 992,077.41 and 396,604.26
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Solution
The fourth proportional to 718,894.29, 992,077.41 and 396,604.26 is: 547,315.70
Step by Step Solution
- Step 1: Write the proportion equation
718,894.29 : 992,077.41 = 396,604.26 : x - Step 2: Convert to fraction form
718,894.29/992,077.41 = 396,604.26/x - Step 3: Cross multiply
718,894.29x = 992,077.41 × 396,604.26 - Step 4: Simplify right side
718,894.29x = 393,462,129,535.96 - Step 5: Solve for x
x = 393,462,129,535.96/718,894.29 - Step 6: Final answer
x = 547,315.70
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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.