Finding the Fourth Proportional to 3,186,658.74, 4,781,400.86 and 1,669,981.08
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Solution
The fourth proportional to 3,186,658.74, 4,781,400.86 and 1,669,981.08 is: 2,505,711.98
Step by Step Solution
- Step 1: Write the proportion equation
3,186,658.74 : 4,781,400.86 = 1,669,981.08 : x - Step 2: Convert to fraction form
3,186,658.74/4,781,400.86 = 1,669,981.08/x - Step 3: Cross multiply
3,186,658.74x = 4,781,400.86 × 1,669,981.08 - Step 4: Simplify right side
3,186,658.74x = 7,984,848,972,095.73 - Step 5: Solve for x
x = 7,984,848,972,095.73/3,186,658.74 - Step 6: Final answer
x = 2,505,711.98
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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.