Finding the Fourth Proportional to 2,516,479.95, 3,472,618.53 and 1,428,608.75
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Solution
The fourth proportional to 2,516,479.95, 3,472,618.53 and 1,428,608.75 is: 1,971,409.79
Step by Step Solution
- Step 1: Write the proportion equation
2,516,479.95 : 3,472,618.53 = 1,428,608.75 : x - Step 2: Convert to fraction form
2,516,479.95/3,472,618.53 = 1,428,608.75/x - Step 3: Cross multiply
2,516,479.95x = 3,472,618.53 × 1,428,608.75 - Step 4: Simplify right side
2,516,479.95x = 4,961,013,200,007.05 - Step 5: Solve for x
x = 4,961,013,200,007.05/2,516,479.95 - Step 6: Final answer
x = 1,971,409.79
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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.