Finding the Fourth Proportional to 698,103.09, 963,381.69 and 396,297.09
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Solution
The fourth proportional to 698,103.09, 963,381.69 and 396,297.09 is: 546,889.66
Step by Step Solution
- Step 1: Write the proportion equation
698,103.09 : 963,381.69 = 396,297.09 : x - Step 2: Convert to fraction form
698,103.09/963,381.69 = 396,297.09/x - Step 3: Cross multiply
698,103.09x = 963,381.69 × 396,297.09 - Step 4: Simplify right side
698,103.09x = 381,785,360,306.28 - Step 5: Solve for x
x = 381,785,360,306.28/698,103.09 - Step 6: Final answer
x = 546,889.66
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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.