Finding the Fourth Proportional to 663,573.42, 915,730.79 and 361,767.42
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Solution
The fourth proportional to 663,573.42, 915,730.79 and 361,767.42 is: 499,238.75
Step by Step Solution
- Step 1: Write the proportion equation
663,573.42 : 915,730.79 = 361,767.42 : x - Step 2: Convert to fraction form
663,573.42/915,730.79 = 361,767.42/x - Step 3: Cross multiply
663,573.42x = 915,730.79 × 361,767.42 - Step 4: Simplify right side
663,573.42x = 331,281,563,504.03 - Step 5: Solve for x
x = 331,281,563,504.03/663,573.42 - Step 6: Final answer
x = 499,238.75
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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.