Finding the Fourth Proportional to 420,802.18, 580,707.66 and 239,514.11
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Solution
The fourth proportional to 420,802.18, 580,707.66 and 239,514.11 is: 330,529.84
Step by Step Solution
- Step 1: Write the proportion equation
420,802.18 : 580,707.66 = 239,514.11 : x - Step 2: Convert to fraction form
420,802.18/580,707.66 = 239,514.11/x - Step 3: Cross multiply
420,802.18x = 580,707.66 × 239,514.11 - Step 4: Simplify right side
420,802.18x = 139,087,678,355.08 - Step 5: Solve for x
x = 139,087,678,355.08/420,802.18 - Step 6: Final answer
x = 330,529.84
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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.