Finding the Fourth Proportional to 668,625.49, 922,703.12 and 378,230.85
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Solution
The fourth proportional to 668,625.49, 922,703.12 and 378,230.85 is: 521,958.53
Step by Step Solution
- Step 1: Write the proportion equation
668,625.49 : 922,703.12 = 378,230.85 : x - Step 2: Convert to fraction form
668,625.49/922,703.12 = 378,230.85/x - Step 3: Cross multiply
668,625.49x = 922,703.12 × 378,230.85 - Step 4: Simplify right side
668,625.49x = 348,994,778,870.58 - Step 5: Solve for x
x = 348,994,778,870.58/668,625.49 - Step 6: Final answer
x = 521,958.53
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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.