Finding the Fourth Proportional to 684,719.97, 1,026,879.20 and 257,947.88
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Solution
The fourth proportional to 684,719.97, 1,026,879.20 and 257,947.88 is: 386,846.19
Step by Step Solution
- Step 1: Write the proportion equation
684,719.97 : 1,026,879.20 = 257,947.88 : x - Step 2: Convert to fraction form
684,719.97/1,026,879.20 = 257,947.88/x - Step 3: Cross multiply
684,719.97x = 1,026,879.20 × 257,947.88 - Step 4: Simplify right side
684,719.97x = 264,881,310,805.93 - Step 5: Solve for x
x = 264,881,310,805.93/684,719.97 - Step 6: Final answer
x = 386,846.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.