Finding the Fourth Proportional to 578,324.48, 797,554.40 and 396,716.00
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Solution
The fourth proportional to 578,324.48, 797,554.40 and 396,716.00 is: 547,102.19
Step by Step Solution
- Step 1: Write the proportion equation
578,324.48 : 797,554.40 = 396,716.00 : x - Step 2: Convert to fraction form
578,324.48/797,554.40 = 396,716.00/x - Step 3: Cross multiply
578,324.48x = 797,554.40 × 396,716.00 - Step 4: Simplify right side
578,324.48x = 316,402,585,379.05 - Step 5: Solve for x
x = 316,402,585,379.05/578,324.48 - Step 6: Final answer
x = 547,102.19
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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.