Finding the Fourth Proportional to 4,890,897.80, 7,336,670.70 and 1,296,614.60
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Solution
The fourth proportional to 4,890,897.80, 7,336,670.70 and 1,296,614.60 is: 1,945,007.79
Step by Step Solution
- Step 1: Write the proportion equation
4,890,897.80 : 7,336,670.70 = 1,296,614.60 : x - Step 2: Convert to fraction form
4,890,897.80/7,336,670.70 = 1,296,614.60/x - Step 3: Cross multiply
4,890,897.80x = 7,336,670.70 × 1,296,614.60 - Step 4: Simplify right side
4,890,897.80x = 9,512,834,345,012.22 - Step 5: Solve for x
x = 9,512,834,345,012.22/4,890,897.80 - Step 6: Final answer
x = 1,945,007.79
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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.