Finding the Fourth Proportional to 619,122.61, 928,776.19 and 219,729.94
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Solution
The fourth proportional to 619,122.61, 928,776.19 and 219,729.94 is: 329,627.66
Step by Step Solution
- Step 1: Write the proportion equation
619,122.61 : 928,776.19 = 219,729.94 : x - Step 2: Convert to fraction form
619,122.61/928,776.19 = 219,729.94/x - Step 3: Cross multiply
619,122.61x = 928,776.19 × 219,729.94 - Step 4: Simplify right side
619,122.61x = 204,079,935,728.05 - Step 5: Solve for x
x = 204,079,935,728.05/619,122.61 - Step 6: Final answer
x = 329,627.66
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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.