Finding the Fourth Proportional to 861,536.66, 1,188,900.91 and 539,424.37
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Solution
The fourth proportional to 861,536.66, 1,188,900.91 and 539,424.37 is: 744,393.30
Step by Step Solution
- Step 1: Write the proportion equation
861,536.66 : 1,188,900.91 = 539,424.37 : x - Step 2: Convert to fraction form
861,536.66/1,188,900.91 = 539,424.37/x - Step 3: Cross multiply
861,536.66x = 1,188,900.91 × 539,424.37 - Step 4: Simplify right side
861,536.66x = 641,322,122,071.21 - Step 5: Solve for x
x = 641,322,122,071.21/861,536.66 - Step 6: Final answer
x = 744,393.30
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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.