Finding the Fourth Proportional to 719,486.19, 992,898.99 and 397,196.46
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Solution
The fourth proportional to 719,486.19, 992,898.99 and 397,196.46 is: 548,135.56
Step by Step Solution
- Step 1: Write the proportion equation
719,486.19 : 992,898.99 = 397,196.46 : x - Step 2: Convert to fraction form
719,486.19/992,898.99 = 397,196.46/x - Step 3: Cross multiply
719,486.19x = 992,898.99 × 397,196.46 - Step 4: Simplify right side
719,486.19x = 394,375,963,965.58 - Step 5: Solve for x
x = 394,375,963,965.58/719,486.19 - Step 6: Final answer
x = 548,135.56
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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.