Finding the Fourth Proportional to 684,741.19, 1,026,911.10 and 257,969.09
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Solution
The fourth proportional to 684,741.19, 1,026,911.10 and 257,969.09 is: 386,878.03
Step by Step Solution
- Step 1: Write the proportion equation
684,741.19 : 1,026,911.10 = 257,969.09 : x - Step 2: Convert to fraction form
684,741.19/1,026,911.10 = 257,969.09/x - Step 3: Cross multiply
684,741.19x = 1,026,911.10 × 257,969.09 - Step 4: Simplify right side
684,741.19x = 264,911,320,688.05 - Step 5: Solve for x
x = 264,911,320,688.05/684,741.19 - Step 6: Final answer
x = 386,878.03
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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.