Finding the Fourth Proportional to 611,894.70, 917,842.05 and 543,660.30
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Solution
The fourth proportional to 611,894.70, 917,842.05 and 543,660.30 is: 815,490.45
Step by Step Solution
- Step 1: Write the proportion equation
611,894.70 : 917,842.05 = 543,660.30 : x - Step 2: Convert to fraction form
611,894.70/917,842.05 = 543,660.30/x - Step 3: Cross multiply
611,894.70x = 917,842.05 × 543,660.30 - Step 4: Simplify right side
611,894.70x = 498,994,284,255.62 - Step 5: Solve for x
x = 498,994,284,255.62/611,894.70 - Step 6: Final answer
x = 815,490.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.