Finding the Fourth Proportional to 743,392.68, 1,025,894.36 and 403,861.20
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Solution
The fourth proportional to 743,392.68, 1,025,894.36 and 403,861.20 is: 557,335.23
Step by Step Solution
- Step 1: Write the proportion equation
743,392.68 : 1,025,894.36 = 403,861.20 : x - Step 2: Convert to fraction form
743,392.68/1,025,894.36 = 403,861.20/x - Step 3: Cross multiply
743,392.68x = 1,025,894.36 × 403,861.20 - Step 4: Simplify right side
743,392.68x = 414,318,927,302.83 - Step 5: Solve for x
x = 414,318,927,302.83/743,392.68 - Step 6: Final answer
x = 557,335.23
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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.