Finding the Fourth Proportional to 621,733.18, 857,991.83 and 353,461.18
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Solution
The fourth proportional to 621,733.18, 857,991.83 and 353,461.18 is: 487,776.45
Step by Step Solution
- Step 1: Write the proportion equation
621,733.18 : 857,991.83 = 353,461.18 : x - Step 2: Convert to fraction form
621,733.18/857,991.83 = 353,461.18/x - Step 3: Cross multiply
621,733.18x = 857,991.83 × 353,461.18 - Step 4: Simplify right side
621,733.18x = 303,266,804,662.16 - Step 5: Solve for x
x = 303,266,804,662.16/621,733.18 - Step 6: Final answer
x = 487,776.45
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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.