Finding the Fourth Proportional to 512,729.43, 707,574.05 and 283,292.01
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Solution
The fourth proportional to 512,729.43, 707,574.05 and 283,292.01 is: 390,947.07
Step by Step Solution
- Step 1: Write the proportion equation
512,729.43 : 707,574.05 = 283,292.01 : x - Step 2: Convert to fraction form
512,729.43/707,574.05 = 283,292.01/x - Step 3: Cross multiply
512,729.43x = 707,574.05 × 283,292.01 - Step 4: Simplify right side
512,729.43x = 200,450,070,602.24 - Step 5: Solve for x
x = 200,450,070,602.24/512,729.43 - Step 6: Final answer
x = 390,947.07
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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.