Finding the Fourth Proportional to 719,124.06, 992,394.12 and 396,843.48
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Solution
The fourth proportional to 719,124.06, 992,394.12 and 396,843.48 is: 547,645.61
Step by Step Solution
- Step 1: Write the proportion equation
719,124.06 : 992,394.12 = 396,843.48 : x - Step 2: Convert to fraction form
719,124.06/992,394.12 = 396,843.48/x - Step 3: Cross multiply
719,124.06x = 992,394.12 × 396,843.48 - Step 4: Simplify right side
719,124.06x = 393,825,136,112.34 - Step 5: Solve for x
x = 393,825,136,112.34/719,124.06 - Step 6: Final answer
x = 547,645.61
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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.