Finding the Fourth Proportional to 979,630.80, 1,351,768.02 and 543,988.92
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Solution
The fourth proportional to 979,630.80, 1,351,768.02 and 543,988.92 is: 750,636.69
Step by Step Solution
- Step 1: Write the proportion equation
979,630.80 : 1,351,768.02 = 543,988.92 : x - Step 2: Convert to fraction form
979,630.80/1,351,768.02 = 543,988.92/x - Step 3: Cross multiply
979,630.80x = 1,351,768.02 × 543,988.92 - Step 4: Simplify right side
979,630.80x = 735,346,825,290.34 - Step 5: Solve for x
x = 735,346,825,290.34/979,630.80 - Step 6: Final answer
x = 750,636.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.