Finding the Fourth Proportional to 668,226.60, 921,260.60 and 530,861.31
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Solution
The fourth proportional to 668,226.60, 921,260.60 and 530,861.31 is: 731,879.88
Step by Step Solution
- Step 1: Write the proportion equation
668,226.60 : 921,260.60 = 530,861.31 : x - Step 2: Convert to fraction form
668,226.60/921,260.60 = 530,861.31/x - Step 3: Cross multiply
668,226.60x = 921,260.60 × 530,861.31 - Step 4: Simplify right side
668,226.60x = 489,061,606,313.08 - Step 5: Solve for x
x = 489,061,606,313.08/668,226.60 - Step 6: Final answer
x = 731,879.88
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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.