Finding the Fourth Proportional to 3,417,826.70, 5,128,708.35 and 1,289,438.30
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Solution
The fourth proportional to 3,417,826.70, 5,128,708.35 and 1,289,438.30 is: 1,934,900.03
Step by Step Solution
- Step 1: Write the proportion equation
3,417,826.70 : 5,128,708.35 = 1,289,438.30 : x - Step 2: Convert to fraction form
3,417,826.70/5,128,708.35 = 1,289,438.30/x - Step 3: Cross multiply
3,417,826.70x = 5,128,708.35 × 1,289,438.30 - Step 4: Simplify right side
3,417,826.70x = 6,613,152,976,019.81 - Step 5: Solve for x
x = 6,613,152,976,019.81/3,417,826.70 - Step 6: Final answer
x = 1,934,900.03
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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.