Finding the Fourth Proportional to 430,859.13, 646,288.86 and 430,236.52
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Solution
The fourth proportional to 430,859.13, 646,288.86 and 430,236.52 is: 645,354.94
Step by Step Solution
- Step 1: Write the proportion equation
430,859.13 : 646,288.86 = 430,236.52 : x - Step 2: Convert to fraction form
430,859.13/646,288.86 = 430,236.52/x - Step 3: Cross multiply
430,859.13x = 646,288.86 × 430,236.52 - Step 4: Simplify right side
430,859.13x = 278,057,068,425.45 - Step 5: Solve for x
x = 278,057,068,425.45/430,859.13 - Step 6: Final answer
x = 645,354.94
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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.