Finding the Fourth Proportional to 684,276.80, 1,026,415.20 and 310,299.80
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Solution
The fourth proportional to 684,276.80, 1,026,415.20 and 310,299.80 is: 465,449.70
Step by Step Solution
- Step 1: Write the proportion equation
684,276.80 : 1,026,415.20 = 310,299.80 : x - Step 2: Convert to fraction form
684,276.80/1,026,415.20 = 310,299.80/x - Step 3: Cross multiply
684,276.80x = 1,026,415.20 × 310,299.80 - Step 4: Simplify right side
684,276.80x = 318,496,431,276.96 - Step 5: Solve for x
x = 318,496,431,276.96/684,276.80 - Step 6: Final answer
x = 465,449.70
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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.