Finding the Fourth Proportional to 494,975.98, 683,077.08 and 280,116.01
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Solution
The fourth proportional to 494,975.98, 683,077.08 and 280,116.01 is: 386,565.88
Step by Step Solution
- Step 1: Write the proportion equation
494,975.98 : 683,077.08 = 280,116.01 : x - Step 2: Convert to fraction form
494,975.98/683,077.08 = 280,116.01/x - Step 3: Cross multiply
494,975.98x = 683,077.08 × 280,116.01 - Step 4: Simplify right side
494,975.98x = 191,340,826,172.05 - Step 5: Solve for x
x = 191,340,826,172.05/494,975.98 - Step 6: Final answer
x = 386,565.88
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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.