Finding the Fourth Proportional to 698,756.09, 964,260.90 and 392,845.31
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Solution
The fourth proportional to 698,756.09, 964,260.90 and 392,845.31 is: 542,113.88
Step by Step Solution
- Step 1: Write the proportion equation
698,756.09 : 964,260.90 = 392,845.31 : x - Step 2: Convert to fraction form
698,756.09/964,260.90 = 392,845.31/x - Step 3: Cross multiply
698,756.09x = 964,260.90 × 392,845.31 - Step 4: Simplify right side
698,756.09x = 378,805,374,592.03 - Step 5: Solve for x
x = 378,805,374,592.03/698,756.09 - Step 6: Final answer
x = 542,113.88
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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.