Finding the Fourth Proportional to 511,431.57, 705,618.95 and 296,528.49
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Solution
The fourth proportional to 511,431.57, 705,618.95 and 296,528.49 is: 409,118.51
Step by Step Solution
- Step 1: Write the proportion equation
511,431.57 : 705,618.95 = 296,528.49 : x - Step 2: Convert to fraction form
511,431.57/705,618.95 = 296,528.49/x - Step 3: Cross multiply
511,431.57x = 705,618.95 × 296,528.49 - Step 4: Simplify right side
511,431.57x = 209,236,120,276.24 - Step 5: Solve for x
x = 209,236,120,276.24/511,431.57 - Step 6: Final answer
x = 409,118.51
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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.