Finding the Fourth Proportional to 1,322,789.12, 1,825,439.94 and 719,177.12
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Solution
The fourth proportional to 1,322,789.12, 1,825,439.94 and 719,177.12 is: 992,459.51
Step by Step Solution
- Step 1: Write the proportion equation
1,322,789.12 : 1,825,439.94 = 719,177.12 : x - Step 2: Convert to fraction form
1,322,789.12/1,825,439.94 = 719,177.12/x - Step 3: Cross multiply
1,322,789.12x = 1,825,439.94 × 719,177.12 - Step 4: Simplify right side
1,322,789.12x = 1,312,814,638,782.17 - Step 5: Solve for x
x = 1,312,814,638,782.17/1,322,789.12 - Step 6: Final answer
x = 992,459.51
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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.