Finding the Fourth Proportional to 698,190.09, 963,503.22 and 396,384.09
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Solution
The fourth proportional to 698,190.09, 963,503.22 and 396,384.09 is: 547,010.55
Step by Step Solution
- Step 1: Write the proportion equation
698,190.09 : 963,503.22 = 396,384.09 : x - Step 2: Convert to fraction form
698,190.09/963,503.22 = 396,384.09/x - Step 3: Cross multiply
698,190.09x = 963,503.22 × 396,384.09 - Step 4: Simplify right side
698,190.09x = 381,917,347,071.77 - Step 5: Solve for x
x = 381,917,347,071.77/698,190.09 - Step 6: Final answer
x = 547,010.55
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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.