Finding the Fourth Proportional to 702,942.20, 970,064.84 and 380,652.30
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Solution
The fourth proportional to 702,942.20, 970,064.84 and 380,652.30 is: 525,302.67
Step by Step Solution
- Step 1: Write the proportion equation
702,942.20 : 970,064.84 = 380,652.30 : x - Step 2: Convert to fraction form
702,942.20/970,064.84 = 380,652.30/x - Step 3: Cross multiply
702,942.20x = 970,064.84 × 380,652.30 - Step 4: Simplify right side
702,942.20x = 369,257,412,495.13 - Step 5: Solve for x
x = 369,257,412,495.13/702,942.20 - Step 6: Final answer
x = 525,302.67
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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.