Finding the Fourth Proportional to 783,276.80, 1,080,840.68 and 460,967.68
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Solution
The fourth proportional to 783,276.80, 1,080,840.68 and 460,967.68 is: 636,087.55
Step by Step Solution
- Step 1: Write the proportion equation
783,276.80 : 1,080,840.68 = 460,967.68 : x - Step 2: Convert to fraction form
783,276.80/1,080,840.68 = 460,967.68/x - Step 3: Cross multiply
783,276.80x = 1,080,840.68 × 460,967.68 - Step 4: Simplify right side
783,276.80x = 498,232,620,709.22 - Step 5: Solve for x
x = 498,232,620,709.22/783,276.80 - Step 6: Final answer
x = 636,087.55
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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.