Finding the Fourth Proportional to 699,035.42, 964,659.71 and 393,111.70
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Solution
The fourth proportional to 699,035.42, 964,659.71 and 393,111.70 is: 542,488.99
Step by Step Solution
- Step 1: Write the proportion equation
699,035.42 : 964,659.71 = 393,111.70 : x - Step 2: Convert to fraction form
699,035.42/964,659.71 = 393,111.70/x - Step 3: Cross multiply
699,035.42x = 964,659.71 × 393,111.70 - Step 4: Simplify right side
699,035.42x = 379,219,020,305.70 - Step 5: Solve for x
x = 379,219,020,305.70/699,035.42 - Step 6: Final answer
x = 542,488.99
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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.