Finding the Fourth Proportional to 1,280,343.88, 1,766,723.94 and 707,349.88
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Solution
The fourth proportional to 1,280,343.88, 1,766,723.94 and 707,349.88 is: 976,059.62
Step by Step Solution
- Step 1: Write the proportion equation
1,280,343.88 : 1,766,723.94 = 707,349.88 : x - Step 2: Convert to fraction form
1,280,343.88/1,766,723.94 = 707,349.88/x - Step 3: Cross multiply
1,280,343.88x = 1,766,723.94 × 707,349.88 - Step 4: Simplify right side
1,280,343.88x = 1,249,691,966,952.13 - Step 5: Solve for x
x = 1,249,691,966,952.13/1,280,343.88 - Step 6: Final answer
x = 976,059.62
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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.