Finding the Fourth Proportional to 907,920.87, 1,252,882.18 and 499,943.09
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Solution
The fourth proportional to 907,920.87, 1,252,882.18 and 499,943.09 is: 689,894.68
Step by Step Solution
- Step 1: Write the proportion equation
907,920.87 : 1,252,882.18 = 499,943.09 : x - Step 2: Convert to fraction form
907,920.87/1,252,882.18 = 499,943.09/x - Step 3: Cross multiply
907,920.87x = 1,252,882.18 × 499,943.09 - Step 4: Simplify right side
907,920.87x = 626,369,785,184.81 - Step 5: Solve for x
x = 626,369,785,184.81/907,920.87 - Step 6: Final answer
x = 689,894.68
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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.