Finding the Fourth Proportional to 986,318.76, 1,479,946.16 and 683,179.05
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Solution
The fourth proportional to 986,318.76, 1,479,946.16 and 683,179.05 is: 1,025,092.75
Step by Step Solution
- Step 1: Write the proportion equation
986,318.76 : 1,479,946.16 = 683,179.05 : x - Step 2: Convert to fraction form
986,318.76/1,479,946.16 = 683,179.05/x - Step 3: Cross multiply
986,318.76x = 1,479,946.16 × 683,179.05 - Step 4: Simplify right side
986,318.76x = 1,011,068,211,639.95 - Step 5: Solve for x
x = 1,011,068,211,639.95/986,318.76 - Step 6: Final answer
x = 1,025,092.75
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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.