Finding the Fourth Proportional to 427,964.70, 641,655.45 and 203,432.70
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Solution
The fourth proportional to 427,964.70, 641,655.45 and 203,432.70 is: 305,010.44
Step by Step Solution
- Step 1: Write the proportion equation
427,964.70 : 641,655.45 = 203,432.70 : x - Step 2: Convert to fraction form
427,964.70/641,655.45 = 203,432.70/x - Step 3: Cross multiply
427,964.70x = 641,655.45 × 203,432.70 - Step 4: Simplify right side
427,964.70x = 130,533,700,663.22 - Step 5: Solve for x
x = 130,533,700,663.22/427,964.70 - Step 6: Final answer
x = 305,010.44
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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.