Finding the Fourth Proportional to 704,122.12, 971,688.79 and 381,832.13
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Solution
The fourth proportional to 704,122.12, 971,688.79 and 381,832.13 is: 526,928.48
Step by Step Solution
- Step 1: Write the proportion equation
704,122.12 : 971,688.79 = 381,832.13 : x - Step 2: Convert to fraction form
704,122.12/971,688.79 = 381,832.13/x - Step 3: Cross multiply
704,122.12x = 971,688.79 × 381,832.13 - Step 4: Simplify right side
704,122.12x = 371,022,000,902.88 - Step 5: Solve for x
x = 371,022,000,902.88/704,122.12 - Step 6: Final answer
x = 526,928.48
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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.