Finding the Fourth Proportional to 1,272,723.60, 1,756,391.82 and 691,985.79
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Solution
The fourth proportional to 1,272,723.60, 1,756,391.82 and 691,985.79 is: 954,958.47
Step by Step Solution
- Step 1: Write the proportion equation
1,272,723.60 : 1,756,391.82 = 691,985.79 : x - Step 2: Convert to fraction form
1,272,723.60/1,756,391.82 = 691,985.79/x - Step 3: Cross multiply
1,272,723.60x = 1,756,391.82 × 691,985.79 - Step 4: Simplify right side
1,272,723.60x = 1,215,398,181,112.24 - Step 5: Solve for x
x = 1,215,398,181,112.24/1,272,723.60 - Step 6: Final answer
x = 954,958.47
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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.