Finding the Fourth Proportional to 998,711.19, 1,378,227.69 and 539,824.82
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Solution
The fourth proportional to 998,711.19, 1,378,227.69 and 539,824.82 is: 744,961.62
Step by Step Solution
- Step 1: Write the proportion equation
998,711.19 : 1,378,227.69 = 539,824.82 : x - Step 2: Convert to fraction form
998,711.19/1,378,227.69 = 539,824.82/x - Step 3: Cross multiply
998,711.19x = 1,378,227.69 × 539,824.82 - Step 4: Simplify right side
998,711.19x = 744,001,507,782.13 - Step 5: Solve for x
x = 744,001,507,782.13/998,711.19 - Step 6: Final answer
x = 744,961.62
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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.