Finding the Fourth Proportional to 4,079,904.90, 6,119,857.35 and 1,420,512.90
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Solution
The fourth proportional to 4,079,904.90, 6,119,857.35 and 1,420,512.90 is: 2,130,769.35
Step by Step Solution
- Step 1: Write the proportion equation
4,079,904.90 : 6,119,857.35 = 1,420,512.90 : x - Step 2: Convert to fraction form
4,079,904.90/6,119,857.35 = 1,420,512.90/x - Step 3: Cross multiply
4,079,904.90x = 6,119,857.35 × 1,420,512.90 - Step 4: Simplify right side
4,079,904.90x = 8,693,336,311,834.81 - Step 5: Solve for x
x = 8,693,336,311,834.81/4,079,904.90 - Step 6: Final answer
x = 2,130,769.35
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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.