Finding the Fourth Proportional to 493,260.10, 680,812.70 and 289,376.53
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Solution
The fourth proportional to 493,260.10, 680,812.70 and 289,376.53 is: 399,406.35
Step by Step Solution
- Step 1: Write the proportion equation
493,260.10 : 680,812.70 = 289,376.53 : x - Step 2: Convert to fraction form
493,260.10/680,812.70 = 289,376.53/x - Step 3: Cross multiply
493,260.10x = 680,812.70 × 289,376.53 - Step 4: Simplify right side
493,260.10x = 197,011,213,557.02 - Step 5: Solve for x
x = 197,011,213,557.02/493,260.10 - Step 6: Final answer
x = 399,406.35
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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.