Finding the Fourth Proportional to 986,245.38, 1,478,479.95 and 354,715.20
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Solution
The fourth proportional to 986,245.38, 1,478,479.95 and 354,715.20 is: 531,753.38
Step by Step Solution
- Step 1: Write the proportion equation
986,245.38 : 1,478,479.95 = 354,715.20 : x - Step 2: Convert to fraction form
986,245.38/1,478,479.95 = 354,715.20/x - Step 3: Cross multiply
986,245.38x = 1,478,479.95 × 354,715.20 - Step 4: Simplify right side
986,245.38x = 524,439,311,160.24 - Step 5: Solve for x
x = 524,439,311,160.24/986,245.38 - Step 6: Final answer
x = 531,753.38
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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.