Finding the Fourth Proportional to 622,813.12, 859,302.96 and 405,341.94
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Solution
The fourth proportional to 622,813.12, 859,302.96 and 405,341.94 is: 559,255.28
Step by Step Solution
- Step 1: Write the proportion equation
622,813.12 : 859,302.96 = 405,341.94 : x - Step 2: Convert to fraction form
622,813.12/859,302.96 = 405,341.94/x - Step 3: Cross multiply
622,813.12x = 859,302.96 × 405,341.94 - Step 4: Simplify right side
622,813.12x = 348,311,528,854.14 - Step 5: Solve for x
x = 348,311,528,854.14/622,813.12 - Step 6: Final answer
x = 559,255.28
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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.