Finding the Fourth Proportional to 408,956.81, 613,560.42 and 209,418.48
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Solution
The fourth proportional to 408,956.81, 613,560.42 and 209,418.48 is: 314,191.82
Step by Step Solution
- Step 1: Write the proportion equation
408,956.81 : 613,560.42 = 209,418.48 : x - Step 2: Convert to fraction form
408,956.81/613,560.42 = 209,418.48/x - Step 3: Cross multiply
408,956.81x = 613,560.42 × 209,418.48 - Step 4: Simplify right side
408,956.81x = 128,490,886,429.67 - Step 5: Solve for x
x = 128,490,886,429.67/408,956.81 - Step 6: Final answer
x = 314,191.82
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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.