Finding the Fourth Proportional to 684,327.21, 1,026,561.06 and 258,221.66
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Solution
The fourth proportional to 684,327.21, 1,026,561.06 and 258,221.66 is: 387,358.99
Step by Step Solution
- Step 1: Write the proportion equation
684,327.21 : 1,026,561.06 = 258,221.66 : x - Step 2: Convert to fraction form
684,327.21/1,026,561.06 = 258,221.66/x - Step 3: Cross multiply
684,327.21x = 1,026,561.06 × 258,221.66 - Step 4: Simplify right side
684,327.21x = 265,080,295,871.75 - Step 5: Solve for x
x = 265,080,295,871.75/684,327.21 - Step 6: Final answer
x = 387,358.99
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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.