Finding the Fourth Proportional to 719,253.05, 992,571.28 and 392,569.05
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Solution
The fourth proportional to 719,253.05, 992,571.28 and 392,569.05 is: 541,746.42
Step by Step Solution
- Step 1: Write the proportion equation
719,253.05 : 992,571.28 = 392,569.05 : x - Step 2: Convert to fraction form
719,253.05/992,571.28 = 392,569.05/x - Step 3: Cross multiply
719,253.05x = 992,571.28 × 392,569.05 - Step 4: Simplify right side
719,253.05x = 389,652,767,187.60 - Step 5: Solve for x
x = 389,652,767,187.60/719,253.05 - Step 6: Final answer
x = 541,746.42
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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.