Finding the Fourth Proportional to 1,679,801.70, 2,519,702.55 and 1,207,409.70
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Solution
The fourth proportional to 1,679,801.70, 2,519,702.55 and 1,207,409.70 is: 1,811,114.55
Step by Step Solution
- Step 1: Write the proportion equation
1,679,801.70 : 2,519,702.55 = 1,207,409.70 : x - Step 2: Convert to fraction form
1,679,801.70/2,519,702.55 = 1,207,409.70/x - Step 3: Cross multiply
1,679,801.70x = 2,519,702.55 × 1,207,409.70 - Step 4: Simplify right side
1,679,801.70x = 3,042,313,299,984.74 - Step 5: Solve for x
x = 3,042,313,299,984.74/1,679,801.70 - Step 6: Final answer
x = 1,811,114.55
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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.