Finding the Fourth Proportional to 981,356.84, 1,354,279.92 and 545,780.28
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Solution
The fourth proportional to 981,356.84, 1,354,279.92 and 545,780.28 is: 753,180.95
Step by Step Solution
- Step 1: Write the proportion equation
981,356.84 : 1,354,279.92 = 545,780.28 : x - Step 2: Convert to fraction form
981,356.84/1,354,279.92 = 545,780.28/x - Step 3: Cross multiply
981,356.84x = 1,354,279.92 × 545,780.28 - Step 4: Simplify right side
981,356.84x = 739,139,273,935.98 - Step 5: Solve for x
x = 739,139,273,935.98/981,356.84 - Step 6: Final answer
x = 753,180.95
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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.