Finding the Fourth Proportional to 2,808,729.62, 4,213,095.09 and 678,813.50
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Solution
The fourth proportional to 2,808,729.62, 4,213,095.09 and 678,813.50 is: 1,018,220.40
Step by Step Solution
- Step 1: Write the proportion equation
2,808,729.62 : 4,213,095.09 = 678,813.50 : x - Step 2: Convert to fraction form
2,808,729.62/4,213,095.09 = 678,813.50/x - Step 3: Cross multiply
2,808,729.62x = 4,213,095.09 × 678,813.50 - Step 4: Simplify right side
2,808,729.62x = 2,859,905,802,810.24 - Step 5: Solve for x
x = 2,859,905,802,810.24/2,808,729.62 - Step 6: Final answer
x = 1,018,220.40
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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.