Finding the Fourth Proportional to 698,192.09, 963,505.98 and 396,386.09
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Solution
The fourth proportional to 698,192.09, 963,505.98 and 396,386.09 is: 547,013.31
Step by Step Solution
- Step 1: Write the proportion equation
698,192.09 : 963,505.98 = 396,386.09 : x - Step 2: Convert to fraction form
698,192.09/963,505.98 = 396,386.09/x - Step 3: Cross multiply
698,192.09x = 963,505.98 × 396,386.09 - Step 4: Simplify right side
698,192.09x = 381,920,363,286.29 - Step 5: Solve for x
x = 381,920,363,286.29/698,192.09 - Step 6: Final answer
x = 547,013.31
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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.