Finding the Fourth Proportional to 512,420.28, 707,126.58 and 282,994.26
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Solution
The fourth proportional to 512,420.28, 707,126.58 and 282,994.26 is: 390,524.67
Step by Step Solution
- Step 1: Write the proportion equation
512,420.28 : 707,126.58 = 282,994.26 : x - Step 2: Convert to fraction form
512,420.28/707,126.58 = 282,994.26/x - Step 3: Cross multiply
512,420.28x = 707,126.58 × 282,994.26 - Step 4: Simplify right side
512,420.28x = 200,112,763,233.43 - Step 5: Solve for x
x = 200,112,763,233.43/512,420.28 - Step 6: Final answer
x = 390,524.67
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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.