Finding the Fourth Proportional to 738,082.90, 1,107,124.35 and 472,143.70
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Solution
The fourth proportional to 738,082.90, 1,107,124.35 and 472,143.70 is: 708,215.55
Step by Step Solution
- Step 1: Write the proportion equation
738,082.90 : 1,107,124.35 = 472,143.70 : x - Step 2: Convert to fraction form
738,082.90/1,107,124.35 = 472,143.70/x - Step 3: Cross multiply
738,082.90x = 1,107,124.35 × 472,143.70 - Step 4: Simplify right side
738,082.90x = 522,721,786,969.10 - Step 5: Solve for x
x = 522,721,786,969.10/738,082.90 - Step 6: Final answer
x = 708,215.55
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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.