Finding the Fourth Proportional to 641,612.21, 885,325.68 and 369,626.90
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Solution
The fourth proportional to 641,612.21, 885,325.68 and 369,626.90 is: 510,027.99
Step by Step Solution
- Step 1: Write the proportion equation
641,612.21 : 885,325.68 = 369,626.90 : x - Step 2: Convert to fraction form
641,612.21/885,325.68 = 369,626.90/x - Step 3: Cross multiply
641,612.21x = 885,325.68 × 369,626.90 - Step 4: Simplify right side
641,612.21x = 327,240,182,162.16 - Step 5: Solve for x
x = 327,240,182,162.16/641,612.21 - Step 6: Final answer
x = 510,027.99
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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.