Finding the Fourth Proportional to 778,469.18, 1,074,287.95 and 434,305.09
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Solution
The fourth proportional to 778,469.18, 1,074,287.95 and 434,305.09 is: 599,341.29
Step by Step Solution
- Step 1: Write the proportion equation
778,469.18 : 1,074,287.95 = 434,305.09 : x - Step 2: Convert to fraction form
778,469.18/1,074,287.95 = 434,305.09/x - Step 3: Cross multiply
778,469.18x = 1,074,287.95 × 434,305.09 - Step 4: Simplify right side
778,469.18x = 466,568,724,151.64 - Step 5: Solve for x
x = 466,568,724,151.64/778,469.18 - Step 6: Final answer
x = 599,341.29
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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.