Finding the Fourth Proportional to 1,243,247.88, 1,715,679.62 and 699,384.09
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Solution
The fourth proportional to 1,243,247.88, 1,715,679.62 and 699,384.09 is: 965,148.66
Step by Step Solution
- Step 1: Write the proportion equation
1,243,247.88 : 1,715,679.62 = 699,384.09 : x - Step 2: Convert to fraction form
1,243,247.88/1,715,679.62 = 699,384.09/x - Step 3: Cross multiply
1,243,247.88x = 1,715,679.62 × 699,384.09 - Step 4: Simplify right side
1,243,247.88x = 1,199,919,026,268.33 - Step 5: Solve for x
x = 1,199,919,026,268.33/1,243,247.88 - Step 6: Final answer
x = 965,148.66
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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.