Finding the Fourth Proportional to 783,869.16, 1,176,066.18 and 310,689.84
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Solution
The fourth proportional to 783,869.16, 1,176,066.18 and 310,689.84 is: 466,138.78
Step by Step Solution
- Step 1: Write the proportion equation
783,869.16 : 1,176,066.18 = 310,689.84 : x - Step 2: Convert to fraction form
783,869.16/1,176,066.18 = 310,689.84/x - Step 3: Cross multiply
783,869.16x = 1,176,066.18 × 310,689.84 - Step 4: Simplify right side
783,869.16x = 365,391,813,293.61 - Step 5: Solve for x
x = 365,391,813,293.61/783,869.16 - Step 6: Final answer
x = 466,138.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.