Finding the Fourth Proportional to 780,312.84, 1,170,469.20 and 219,347.34
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Solution
The fourth proportional to 780,312.84, 1,170,469.20 and 219,347.34 is: 329,020.99
Step by Step Solution
- Step 1: Write the proportion equation
780,312.84 : 1,170,469.20 = 219,347.34 : x - Step 2: Convert to fraction form
780,312.84/1,170,469.20 = 219,347.34/x - Step 3: Cross multiply
780,312.84x = 1,170,469.20 × 219,347.34 - Step 4: Simplify right side
780,312.84x = 256,739,305,571.93 - Step 5: Solve for x
x = 256,739,305,571.93/780,312.84 - Step 6: Final answer
x = 329,020.99
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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.