Finding the Fourth Proportional to 305,927.70, 458,891.55 and 305,927.70
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Solution
The fourth proportional to 305,927.70, 458,891.55 and 305,927.70 is: 458,891.55
Step by Step Solution
- Step 1: Write the proportion equation
305,927.70 : 458,891.55 = 305,927.70 : x - Step 2: Convert to fraction form
305,927.70/458,891.55 = 305,927.70/x - Step 3: Cross multiply
305,927.70x = 458,891.55 × 305,927.70 - Step 4: Simplify right side
305,927.70x = 140,387,636,440.94 - Step 5: Solve for x
x = 140,387,636,440.94/305,927.70 - Step 6: Final answer
x = 458,891.55
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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.