Finding the Fourth Proportional to 442,930.70, 618,703.30 and 442,930.70
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Solution
The fourth proportional to 442,930.70, 618,703.30 and 442,930.70 is: 618,703.30
Step by Step Solution
- Step 1: Write the proportion equation
442,930.70 : 618,703.30 = 442,930.70 : x - Step 2: Convert to fraction form
442,930.70/618,703.30 = 442,930.70/x - Step 3: Cross multiply
442,930.70x = 618,703.30 × 442,930.70 - Step 4: Simplify right side
442,930.70x = 274,042,685,761.31 - Step 5: Solve for x
x = 274,042,685,761.31/442,930.70 - Step 6: Final answer
x = 618,703.30
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.